-
1 his popularity sagged
Дипломатический термин: его популярность упала -
2 his popularity skidded
Общая лексика: его популярность покатилась под уклонУниверсальный англо-русский словарь > his popularity skidded
-
3 his popularity stemmed from the fact that
Общая лексика: его популярность объясняется тем, чтоУниверсальный англо-русский словарь > his popularity stemmed from the fact that
-
4 his popularity sagged
Англо-русский дипломатический словарь > his popularity sagged
-
5 his popularity sagged
English-russian dctionary of diplomacy > his popularity sagged
-
6 popularity
Popularität, die; Beliebtheit, die; (of decision, measure) Popularität, die* * *[-'læ-]noun (the state of being well liked.) die Popularität* * *popu·lar·ity[ˌpɒpjəˈlærəti, AM ˌpɑ:pjəˈlerət̬i]movie-going in America is enjoying an upsurge of \popularity das Interesse an Kinobesuchen hat in den USA rapide zugenommenhow do you account for Tom's amazing \popularity with women? wie erklärst du dir, dass Tom bei den Frauen so gut ankommt?* * *["pɒpjʊ'lrItɪ]nBeliebtheit f; (with the public also) Popularität f (with bei)he'd do anything to win popularity — er würde alles tun, um sich beliebt zu machen
he'd never win a popularity contest! — er ist nicht gerade beliebt
the sport is growing/declining in popularity — dieser Sport wird immer populärer/verliert immer mehr an Popularität
* * *a) Volkstümlichkeit fhave little popularity wenig populär sein;his popularity rating has gone down (by) two per cent er ist auf der Beliebtheitsskala um zwei Prozent gesunken* * *noun, no pl.Popularität, die; Beliebtheit, die; (of decision, measure) Popularität, die* * *n.Beleibtheit f.Beliebtheit f.Popularität f. -
7 popularity
-
8 To his dog every man is Napoleon; hence the constant popularity of dogs.
<01> Для своей собаки каждый человек – Наполеон. Вот почему так популярны собаки. Huxley (Хаксли).Англо-русский словарь цитат, пословиц, поговорок и идиом > To his dog every man is Napoleon; hence the constant popularity of dogs.
-
9 increase
1. intransitive verbzunehmen; [Schmerzen:] stärker werden; [Lärm:] größer werden; [Verkäufe, Preise, Nachfrage:] steigen2. transitive verbincrease in maturity/value/popularity — an Reife/Wert/Popularität (Dat.) gewinnen
1) (make greater) erhöhen; vermehren [Besitz]2) (intensify) verstärken3. nounincrease one's efforts/commitment — sich mehr anstrengen/engagieren
1) (becoming greater) Zunahme, die (in Gen.); (in measurable amount) Anstieg, der (in Gen.); (deliberately caused) Steigerung, die (in Gen.)increase in weight/size — Gewichtszunahme, die/Vergrößerung, die
increase in popularity — Popularitätsgewinn, der
be on the increase — [ständig] zunehmen
* * *1. [in'kri:s] verb(to (cause to) grow in size, number etc: The number of children in this school has increased greatly in recent years.) zunehmen2. ['inkri:s] noun((the amount, number etc added by) growth: There has been some increase in business; The increase in the population over the last ten years was 40,000.) die Zunahme- academic.ru/37503/increasingly">increasingly- on the increase* * *in·creaseI. vi[ɪnˈkri:s]prices, taxes, interest rates [an]steigen; pain, troubles, worries stärker werden, zunehmen; in size wachsento \increase dramatically [or drastically] dramatisch [o drastisch] [an]steigen; population, wealth anwachsento \increase tenfold/threefold sich akk verzehnfachen/verdreifachenII. vt[ɪnˈkri:s]▪ to \increase sth (make more) etw erhöhen; (make stronger) etw verstärken; (make larger) etw vergrößerngently \increase the heat die Hitze langsam erhöhen; reserves, finances aufstockenIII. n[ˈɪnkri:s]the \increase in the number of unemployed der Anstieg der Arbeitslosenzahlenan \increase in production eine Steigerung der Produktion\increase in capacity Kapazitätserweiterung f\increase in efficiency Effizienzsteigerung f\increase in pollution zunehmende Umweltverschmutzung\increase in value Wertsteigerung f\increase in violence zunehmende Gewalttax \increase Steuererhöhung fto be on the \increase ansteigen; in numbers [mehr und] [o [immer]] mehr werden; in size [immer] größer werden; in reserves, finances Aufstockung f* * *[ɪn'kriːs]1. vizunehmen; (taxes) erhöht werden; (pain also) stärker werden; (amount, number, noise, population also) anwachsen; (possessions, trade, riches also) sich vermehren, (an)wachsen; (pride also, strength) wachsen; (price, sales, demand) steigen; (supply, joy, rage) sich vergrößern, größer werden; (business, institution, town) sich vergrößern, wachsen; (rain, wind) stärker werdento increase in volume/weight — umfangreicher/schwerer werden, an Umfang/Gewicht zunehmen
to increase in breadth/size/number — sich verbreitern/vergrößern/vermehren, breiter/größer/mehr werden
industrial output increased by 2% last year — die Industrieproduktion wuchs im letzten Jahr um 2%
2. vtvergrößern; rage, sorrow, joy, possessions, riches also vermehren; darkness, noise, love, resentment also, effort verstärken; trade, sales erweitern; numbers, taxes, price, speed, demand, tension erhöhen; chances verbessernhe increased his efforts —
then to increase our difficulties — was die Dinge noch schwieriger machte, was unsere Schwierigkeiten noch vergrößerte
increased demand — erhöhte or verstärkte Nachfrage
his hours were increased to 25 per week — seine Stundenzahl wurde auf 25 Wochenstunden erhöht
we increased output to... — wir erhöhten den Ausstoß auf...
they increased her salary by £2,000 to £20,000 a year — sie erhöhten ihr Jahresgehalt um £ 2.000 auf £ 20.000
3. n['ɪnkriːs] Zunahme f, Erhöhung f, Steigerung f; (in size) Vergrößerung f, Erweiterung f; (in number) Vermehrung f, Zuwachs m, Zunahme f; (in speed, spending) Erhöhung f ( in +gen), Steigerung f ( in +gen); (of business) Erweiterung f, Vergrößerung f; (in sales) Zuwachs m; (in expenses) Vermehrung f ( in +gen), Steigerung f ( in +gen); (of effort etc) Vermehrung f, Steigerung f, Verstärkung f; (of demand) Verstärkung f, Steigen nt; (of work) Mehr nt (of an +dat), Zunahme f; (of violence) Zunahme f, Anwachsen nt; (of salary) Gehaltserhöhung f or -aufbesserung f; (of noise) Zunahme f, Verstärkung fan increase in the population of 10% per year — eine jährliche Bevölkerungszunahme or ein jährlicher Bevölkerungszuwachs von 10%
to get an increase of £5 per week — £ 5 pro Woche mehr bekommen, eine Lohnerhöhung von £ 5 pro Woche bekommen
increase in value — Wertzuwachs m, Wertsteigerung f
* * *increase [ınˈkriːs]A v/i1. zunehmen, größer werden, (an)wachsen, (an)steigen, sich vergrößern oder vermehren oder erhöhen oder steigern oder verstärken:prices have increased die Preise sind gestiegen oder haben angezogen;his popularity has increased (by) 2 percent (Br per cent) seine Beliebtheit ist um 2 Prozent gestiegen;increase in size (value) an Größe (Wert) zunehmen, größer (wertvoller) werden;increase in price im Preis steigen, teurer werden;a) Mehrbedarf m,b) WIRTSCH verstärkte Nachfrage;2. sich (durch Fortpflanzung) vermehrenB v/t vergrößern, -stärken, -mehren, erhöhen, steigern, SPORT seine Führung etc ausbauen, WIRTSCH das Kapital aufstocken:increase tenfold verzehnfachen;increase sb’s salary jemandes Gehalt erhöhen oder aufbessern;increase a sentence eine Strafe erhöhen oder verschärfen;C s [ˈınkriːs]1. Vergrößerung f, -mehrung f, -stärkung f, Zunahme f, (An)Wachsen n, Zuwachs m, Wachstum n, Steigen n, Steigerung f, Erhöhung f:be on the increase zunehmen;increase in population Bevölkerungszunahme, -zuwachs;increase in purchasing power Kaufkraftzuwachs;increase in sales WIRTSCH Absatzsteigerung;increase in value Wertsteigerung, -zuwachs;increase of capital WIRTSCH Kapitalerhöhung;increase of a function MATH Zunahme einer Funktion;2. Vermehrung f (durch Fortpflanzung)3. Zuwachs m (eines Betrages), Mehrbetrag mincr. abk1. increase2. increased3. increasing* * *1. intransitive verbzunehmen; [Schmerzen:] stärker werden; [Lärm:] größer werden; [Verkäufe, Preise, Nachfrage:] steigenincrease in weight/size/price — schwerer/größer/teurer werden
2. transitive verbincrease in maturity/value/popularity — an Reife/Wert/Popularität (Dat.) gewinnen
1) (make greater) erhöhen; vermehren [Besitz]2) (intensify) verstärken3. nounincrease one's efforts/commitment — sich mehr anstrengen/engagieren
1) (becoming greater) Zunahme, die (in Gen.); (in measurable amount) Anstieg, der (in Gen.); (deliberately caused) Steigerung, die (in Gen.)increase in weight/size — Gewichtszunahme, die/Vergrößerung, die
increase in popularity — Popularitätsgewinn, der
be on the increase — [ständig] zunehmen
* * *n.Anstieg -e m.Erhöhung -en f.Vermehrung f.Wachstum -¨er n.Zunahme -n f.Zuwachs m. (in) v.steigern v.vergrößern v.vermehren v.zunehmen (an) v. v.anwachsen v.erhöhen v.vergrößern v.vermehren v.wachsen v.(§ p.,pp.: wuchs, ist gewachsen)zunehmen v. -
10 skid
skɪd
1. сущ.
1) скаты, полоз, салазки, направляющий рельс
2) возд. полозковое шасси( вертолета)
3) тормозной башмак( кладется под колеса) Syn: drag
1., scotch II
1.
4) скольжение, скользящее движение а) юз, занос( автомобиля) I slammed the brakes on and went into a skid. ≈ Я ударил по тормозам, и машину начало заносить. б) авт.;
спорт. боковое скольжение Syn: side-slip
1. в) авиац. скольжение на крыло Syn: side-slip
1. ∙ to put the skids under амер.;
сл. ≈ обречь на провал;
избавиться, быстро отделаться to hit the skids ≈ быстро падать;
стремительно двигаться вниз on the skids ≈ обреченный на провал
2. гл.
1) авт. а) неперех. заносить (об автомобиле) It was raining hard, and the car skidded badly. ≈ Шел сильный дождь, и машину заносило. Syn: side-slip
2. б) перех. проезжать( на автомобиле) повороты на большой скорости с заносом
2) предотвращать движение (колес) с помощью тормозного башмака
3) тащить, волочить (напр., бревна)
4) авиац. уходить в сторону при повороте (о самолете)
5) разг.;
преим. амер. отклоняться( от правильного курса) ;
ошибаться;
резко падать (о ценах и т. п.) His popularity skidded. ≈ Его популярность резко упала. подставка;
подпорка( техническое) полоз, направляющий рельс;
скат (техническое) тормозной башмак (авиация) бесстоечное лыжное шасси( авиация) скольжение (на развороте или вираже) (морское) ростры( автомобильное) занос;
юз;
буксование - the car went into a * машину занесло;
машина забуксовала - * chain цепь противоскольжения (американизм) путь под уклон, к провалу, поражению - on the *s катящийся вниз;
обреченный - to hit the *s опуститься - after losing his job he hit the *s потеряв работу, он совсем опустился - to put the *s under smb., smth. (американизм) быстро отделаться от ког-либо, чего-либо;
провалить, свалить, сместить кого-либо;
добиться провала чего-либо - lack of money put the *s under our plan недостаток средств привел к провалу нашего плана скользить( авиация) скользить на крыло( автомобильное) заносить;
буксовать;
двигаться юзом - the car *ded машину занесло тормозить;
спускаться на тормозах спускаться на лыжах резко падать - his popularity *ded его популярность покатилась под уклон( редкое) нестись, мчаться ~ авто заносить;
the car skidded машину занесло ~ авто юз, буксование, занос;
to put the skids under амер. sl. избавиться, быстро отделаться;
on the skids обреченный на провал, гибель ~ авто юз, буксование, занос;
to put the skids under амер. sl. избавиться, быстро отделаться;
on the skids обреченный на провал, гибель skid буксовать ~ авто заносить;
the car skidded машину занесло ~ ав. лыжа ~ скаты, полоз, салазки, направляющий рельс ~ тормозной башмак ~ авто юз, буксование, занос;
to put the skids under амер. sl. избавиться, быстро отделаться;
on the skids обреченный на провал, гибель -
11 wax
I
1. wæks noun1) (the sticky, fatty substance of which bees make their cells; beeswax.) cera2) (the sticky, yellowish substance formed in the ears.) cera3) (a manufactured, fatty substance used in polishing, to give a good shine: furniture wax.) cera4) ((also adjective) (also candle-wax) (of) a substance made from paraffin, used in making candles, models etc, that melts when heated: a wax model.) cera5) (sealing-wax.) lacre
2. verb(to smear, polish or rub with wax.) encerar- waxed- waxen
- waxy
- waxwork
- waxworks
II wæks verb1) ((of the moon) to appear to grow in size as more of it becomes visible.) crecer2) (an old word for to grow or increase.) crecerwax n ceratr[wæks]1 (moon) crecer\SMALLIDIOMATIC EXPRESSION/SMALLto wax lyrical entusiasmarse, exaltarse————————tr[wæks]1 (gen) cera2 (in ear) cerumen nombre masculino1 (polish) encerar\SMALLIDIOMATIC EXPRESSION/SMALLparaffin wax parafinasealing wax lacre nombre masculinowax candle velawax paper papel nombre masculino enceradowax polish cera para abrillantarwax ['wæks] vi1) : crecer (dícese de la luna)2) become: volverse, ponerseto wax indignant: indignarsewax vt: encerarwax n1) beeswax: cera f de abejas2) : cera ffloor wax: cera para el pisov.• crecer la luna v.• encerar v.• encerotar v.• hacerse v.• ponerse v.n.• cera s.f.wæks
I
mass nouna) cera fb) ( earwax) cera f (de los oídos), cerumen mc) ( sealing wax) lacre m
II
1.
a) ( treat with wax) \<\<floor/table/skis\>\> encerarb) ( to remove hair) depilar con cera
2.
vi1) ( increase) \<\<moon\>\> crecer*2) ( become)
I [wæks]1.2.ADJ de cera3.VT [+ furniture, car] encerar4.CPDwax bean N — (US) judía f amarilla
wax museum N — museo m de cera
II
[wæks]VI [moon] crecerlyricalto wax enthusiastic — liter entusiasmarse
* * *[wæks]
I
mass nouna) cera fb) ( earwax) cera f (de los oídos), cerumen mc) ( sealing wax) lacre m
II
1.
a) ( treat with wax) \<\<floor/table/skis\>\> encerarb) ( to remove hair) depilar con cera
2.
vi1) ( increase) \<\<moon\>\> crecer*2) ( become) -
12 deny
[dɪ'naɪ]1) negare [ accusation]; smentire [rumour, news]to deny doing o having done negare di aver fatto; there's no denying his popularity — non si può negare la sua popolarità
2) (refuse)to deny sb. sth. — rifiutare qcs. a qcn.
to deny sb. admittance to a building — negare l'accesso a un edificio a qcn.
to deny oneself sth. — privarsi di qcs
3) (renounce) rinnegare [ religion]* * *1) (to declare not to be true: He denied the charge of theft.) negare2) (to refuse (to give or grant someone something); to say `no' to: He was denied admission to the house.) rifiutare•- denial* * *[dɪ'naɪ]1) negare [ accusation]; smentire [rumour, news]to deny doing o having done negare di aver fatto; there's no denying his popularity — non si può negare la sua popolarità
2) (refuse)to deny sb. sth. — rifiutare qcs. a qcn.
to deny sb. admittance to a building — negare l'accesso a un edificio a qcn.
to deny oneself sth. — privarsi di qcs
3) (renounce) rinnegare [ religion] -
13 calculate
'kælkjuleit(to count or estimate, using numbers: Calculate the number of days in a century.) calcular- calculation
- calculator
calculate vb calculartr['kælkjəleɪt]1 calcular1 calcular1) compute: calcular, computar2) estimate: calcular, creer3) intend: planear, tener la intención deI calculated on spending $100: planeaba gastar $100calculate vi: calcular, hacer cálculosv.• calcular v.• cifrar v.• computar v.• tantear v.'kælkjəleɪt, 'kælkjʊleɪt
1.
1) (compute, estimate) calcular2) ( aim)to be calculated to + INF: his remarks were calculated to offend — lo dijo con la intención or el próposito de ofender
2.
vi calcular['kælkjʊleɪt]1. VT1) (=measure) [+ weight, speed, number, distance] calcular2) (=judge) [+ effects, consequences, risk] calcular3) (=intend)a move calculated to improve his popularity — una operación diseñada or pensada para darle mayor popularidad
2.VI (Math) calcular, hacer cálculos* * *['kælkjəleɪt, 'kælkjʊleɪt]
1.
1) (compute, estimate) calcular2) ( aim)to be calculated to + INF: his remarks were calculated to offend — lo dijo con la intención or el próposito de ofender
2.
vi calcular -
14 nosedive
nosedive ['nəʊzdaɪv]1 noun(a) (of plane, bird) piqué m;∎ I did a nosedive onto the concrete je suis tombé la tête la première sur le béton∎ prices took a nosedive les prix ont considérablement chuté;∎ his popularity has taken a nosedive sa cote de popularité s'est littéralement effondrée□ -
15 dip
dip 1. past tense, past participle - dipped; verb1) (to lower into any liquid for a moment: He dipped his bread in the soup.) dyppe, senke (ned i)2) (to slope downwards: The road dipped just beyond the crossroads.) helle/skråne nedover3) (to lower the beam of (car headlights): He dipped his lights as the other car approached.) blende (ned)4) ((of a ship) to lower (a flag) briefly in salute.) hilse med flagget2. noun1) (a hollow (in a road etc): The car was hidden by a dip in the road.) forsenkning, søkk2) (a soft, savoury mixture in which a biscuit etc can be dipped: a cheese dip.) dip3) (a short swim: a dip in the sea.) dukkert•- dip intodukke--------dukkertIsubst. \/dɪp\/1) dypping, dykking, (ned)senking2) ( hverdagslig) dukkert, bad• have you had a dip?3) dykk, dypp4) ( matlaging) dip, dipmix5) ( til vask av sau) vaskemiddel, vannbasseng6) (hånd)dyppet talglys, (hånd)dyppet stearinlys7) ( i bok e.l.) titt8) ( i terreng) skråning9) ( i vei) fordypning, renne, dump15) (amer.) dumskalleat the dip (sjøfart, om flagg) på halv stanga dip in the polls nedgang i stemmetalletthe dip of the horizon ( sjøfart) kimmingdalingen, forklaring: vinkelen mellom horisonten og himmelrandenIIverb \/dɪp\/1) dyppe, senke ned, stikke ned (hånden)2) dykke (ned), dyppe seg3) ( hverdagslig) døpe4) ( om solen e.l.) senke seg, synke, dale5) ( overført) synke, dale6) ( om lys) støpe, dyppe7) ( om sau) vaske (i desinfiserende bad)8) øse (opp\/ut av)• could you please go and dip up some water?9) ( om terreng e.l.) skråne nedover, helle10) ( om magnetnål e.l.) peke nedover11) (hverdagslig, om lommetyv) nappe, rappedip in! ta for deg\/dere!, forsyn deg\/dere!dip into dukke ned i, gripe\/grave ned i( i bok e.l.) bla i, titte i se inn idip the flag\/colours hilse med flaggetdip the (head)lights ( på bil) blende ned -
16 proving ground
ˈprov·ing groundthese elections were a \proving ground for his popularity with his voters diese Wahlen waren ein Stimmungsbarometer für seine Beliebtheit bei den Wählern* * *['pruːvɪŋ"graʊnd]n(for theory) Versuchsfeld nt; (= situation for sb, sb's abilities) Bewährungsprobe fBelfast was his proving ground — Belfast war für ihn die Bewährungsprobe
-
17 skid
1. [skıd] n1. подставка; подпорка2. тех. полоз, направляющий рельс; скат3. тех. тормозной башмак4. ав.1) бесстоечное лыжное шасси2) скольжение ( на развороте или вираже)5. pl мор. ростры6. авт. занос; юз; буксованиеthe car went into a skid - машину занесло; машина забуксовала
7. pl амер. путь под уклон, к провалу, поражениюon the skids - катящийся вниз /под откос, в пропасть/; обречённый
after losing his job he hit the skids - потеряв работу, он совсем опустился
to put the skids under smb., smth. - амер. а) быстро отделаться /отвязаться/ от кого-л., чего-л.; б) провалить, свалить, сместить кого-л.; добиться провала чего-л.
2. [skıd] vlack of money put the skids under our plan - недостаток средств привёл к провалу нашего плана
1. 1) скользить2) ав. скользить на крыло3) авт. заносить; буксовать; двигаться юзом2. тормозить; спускаться на тормозах3. спускаться на лыжах4. резко падать5. редк. нестись, мчаться -
18 empañarse
■empañarse vr (una superficie) to steam up
2 (la reputación) to become tarnished: su popularidad se empañó por su mal carácter, his popularity was tarnished because of his unpleasant nature
3 (de lágrimas) sus ojos se empañaron por la tristeza, her eyes welled up ' empañarse' also found in these entries: Spanish: empañar English: fog - steam up - mist - steam -
19 proving ground
'prov·ing ground nVersuchsgelände nt; ( fig)these elections were a \proving ground for his popularity with his voters diese Wahlen waren ein Stimmungsbarometer für seine Beliebtheit bei den Wählern -
20 be down to
Общая лексика: сводиться к, (smth) объясняться (чем-л.) (e.g. его популярность объясняется тем, что... = his popularity is down to /to the fact that/...)
См. также в других словарях:
popularity — noun ADJECTIVE ▪ considerable, enormous, great, huge, immense, massive, overwhelming, tremendous, widespread ▪ unprecedented … Collocations dictionary
popularity — /pop yeuh lar i tee/, n. 1. the quality or fact of being popular. 2. the favor of the general public or of a particular group of people: His popularity with television audiences is unrivaled. [1540 50; < L popularitas a courting of popular favor … Universalium
popularity — noun the quality of being widely admired or accepted or sought after (Freq. 6) his charm soon won him affection and popularity the universal popularity of American movies • Ant: ↑unpopularity • Derivationally related forms: ↑popular … Useful english dictionary
Bill Haley & His Comets — Infobox musical artist Name = Bill Haley His Comets Img capt = The original members of Bill Haley and His Comets, c. 1952. Left to right: Marshall Lytle, Johnny Grande, Bill Haley, Billy Williamson. Background = group or band Birth name = Alias … Wikipedia
Every Man in His Humour — is a 1598 play by the English playwright Ben Jonson. The play belongs to the subgenre of the humours comedy, in which each major character is dominated by an overriding humour or obsession.Performance and PublicationAll the available evidence… … Wikipedia
Spider-Man and His Amazing Friends — Infobox Television show name = Spider Man and His Amazing Friends caption = Screencap of the title sequence genre = Animation creator = Stan Lee (characters) voices = Dan Gilvezan Frank Welker Kathy Garver narrated = Dick Tufeld (Season 1) Stan… … Wikipedia
Music popularity index — A music popularity index is a recorded music ranking, classified by popularity, which can be measured in many different ways. Nowadays, they are very common in musical websites, since they offer really interesting statistics which can be used for … Wikipedia
My Utmost for His Highest — Written by Oswald Chambers (1874 1917), My Utmost for His Highest ( ISBN 0 929239 99 7 ) is a compilation of Chambers Christian preaching to students and soldiers. Published in England in 1927, and in the USA in 1935, the book has become one of… … Wikipedia
Arthur Godfrey and His Friends — was a television variety show which ran from 1949 until 1959. At the same time that this show was on the air, Arthur Godfrey was also performing on Arthur Godfrey s Talent Scouts . He also had a morning show which was simulcast on both the CBS… … Wikipedia
King Leonardo and his Short Subjects — infobox television show name = King Leonardo and his Short Subjects genre = animation runtime = 30 minutes starring = Jackson Beck Kenny Delmar Allen Swift Sandy Becker producer = Joe Harris Treadwell Covington Buck Biggers Chet Stover network =… … Wikipedia
Christ taking leave of his Mother — Christ taking leave of his Mother, Germany, 1536 Christ taking leave of his Mother is a subject in Christian art, most commonly found in Northern art of the 15th and 16th centuries. Christ says farewell to his mother Mary, often blessing her,… … Wikipedia