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1 vitesse
vitesse [vitεs]1. feminine nouna. ( = promptitude) speed• à la vitesse de 60 km/h at (a speed of) 60km/h• à quelle vitesse allait-il ? how fast was he going?• à une vitesse vertigineuse [conduire, avancer] at a dizzying speed ; [augmenter, se multiplier] at a dizzying rateb. [de voiture] gear• société/justice à deux vitesses two-tier society/justice systemc. (locutions)• faites-moi ça, et en vitesse ! hurry up and do it!• écrire un petit mot en vitesse to scribble a hasty note► à toute vitesse, en quatrième vitesse at full speed• il est arrivé en quatrième vitesse or à toute vitesse he came very quickly2. compounds━━━━━━━━━━━━━━━━━The speed limit in France is generally 50 km/h in built-up areas (although it can on occasion be as low as 30 km/h); 70 km/h on secondary roads; 90 km/h on main roads; and 130 km/h on motorways (but 110 km/h when it is raining).* * *vitɛs1) ( rapidité) speedà deux vitesses — [courrier, système] two-tier (épith)
faire de la vitesse — [automobiliste] to drive fast
gagner or prendre quelqu'un de vitesse — lit, fig to outstrip somebody
en vitesse — ( vite) quickly; ( trop vite) in a rush
passer en vitesse — [personne] to pop in (colloq)
range ta chambre, et en vitesse! — tidy up your room, and be quick about it!
(il s'enfuit) de toute la vitesse de ses petites jambes — (he ran away) as fast as his little legs would carry him
2) Technologie (engrenage, rapport) gearpasser les vitesses — to change gear GB, to shift gear US
passer la vitesse supérieure/inférieure — to change up/down a gear
passer à la vitesse supérieure — fig to speed things up
•Phrasal Verbs:••à la vitesse grand V, en quatrième vitesse — at top speed
* * *vitɛs nf1) (= rapidité) speedprendre de la vitesse — to pick up speed, to gather speed
à toute vitesse — at full speed, at top speed
2) AUTOMOBILES (= dispositif) gear3) MATHÉMATIQUE, PHYSIQUE speedprendre qn de vitesse — to outstrip sb, to get ahead of sb
être en perte de vitesse [avion] — to lose speed, [parti, tendance] to be losing momentum, [artiste] to be losing popularity
* * *vitesse ⇒ La vitesse nf1 ( rapidité) speed; à grande/petite vitesse [se déplacer, circuler] at high/low speed; à une vitesse folle at an incredible speed; à la vitesse d'un cheval au galop/de 50 km/h at the speed of a galloping horse/at a speed of 50 km/h; à la vitesse moyenne de at an average speed of; prendre/perdre de la vitesse to gather/lose speed; vitesse de pointe maximum speed; vitesse du son/de la lumière speed of sound/of light; il travaille à une vitesse! he works so fast!; partir à toute vitesse to rush away; la voiture est passée à toute vitesse the car flashed past; à deux vitesses [courrier, système, régime] two-tier ( épith); faire de la vitesse [automobiliste] to drive fast; gagner or prendre qn de vitesse lit, fig to outstrip sb; en vitesse ( vite) quickly; ( trop vite) in a rush; passer en vitesse [personne] to pop in○; nous avons mangé en vitesse avant de partir we had a quick meal before leaving; je vous écris en vitesse depuis l'aéroport I'm writing you a quick note from the airport; range ta chambre, et en vitesse! tidy up your room, and be quick about it!; (il s'enfuit) de toute la vitesse de ses petites jambes (he ran away) as fast as his little legs would carry him;2 Tech (engrenage, rapport) gear; voiture à cinq vitesses car with five gears; boîte à cinq vitesses five-speed gearbox; il y a une cinquième vitesse sur sa voiture his car has a fifth gear; passer les vitesses to change gear GB, to shift gear US; passer la vitesse supérieure/inférieure to change up/down a gear; passer ses vitesses en douceur to go smoothly through the gears; faire grincer les vitesses to crunch the gears; bicyclette à trois/douze vitesses three-/twelve-speed bicycle; passer à la vitesse supérieure fig to speed things up.vitesse angulaire Mécan angular velocity; vitesse initiale Mécan initial velocity; (de balle, obus) muzzle velocity; vitesse de libération Astronaut, Phys escape velocity; vitesse de propagation Phys velocity of propagation; vitesse radiale Astron radial velocity; vitesse de réaction Chimie, Psych speed of reaction; vitesse de rotation Mécan rotational velocity; vitesse de sédimentation Biol, Méd sedimentation rate.à la vitesse grand V, en quatrième vitesse at top speed; expédier qch en petite vitesse Rail to send sth by goods train.[vitɛs] nom féminin1. [d'un coureur, d'un véhicule] speedà la vitesse de 180 km/h at (a speed of) 180 km/hla vitesse est limitée à 90 km/h the speed limit is 90 km/hfaire de la vitesse to drive ou to go fastprendre de la vitesse to pick up speed, to speed upgagner/perdre de la vitesse to gather/to lose speedvitesse de pointe top ou maximum speedgagner ou prendre quelqu'un de vitessea. [à pied] to walk faster than somebodyb. [en voiture] to go ou to drive faster than somebodyc. (figuré) to beat somebody to it, to pip somebody at the post (UK), to beat somebody by a nose (US)[de la lumière] speeda. [généralement] initial speedvitesse de réaction reaction velocity ou speedpremière/deuxième/troisième vitesse first/second/third gearb. [en rétrogradant] to go down through the gearsà toute vitesse locution adverbialepasser à toute vitesse [temps, moto] to fly by————————en vitesse locution adverbiale[rapidement] quickly[à la hâte] in a rush ou hurrydéjeuner/se laver en vitesse to have a quick lunch/washsors d'ici, et en vitesse! get out of here and be sharp about it!il a déguerpi en vitesse! he left at the double!, he didn't hang around! -
2 vitesse initiale
a. [généralement] initial speed
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