speed

speed
speedSpeed
A n
1 (velocity of vehicle, wind, record) vitesse f ; (rapidity of response, reaction) rapidité f ; at (a) great speed à toute vitesse ; at a speed of 100 km per hour à une vitesse de 100 km à l'heure ; winds reaching speeds of des vents atteignant une vitesse de ; car with a maximum speed of voiture avec une vitesse maximale de ; at speed [go, run] à toute vitesse ; [work, read] en quatrième vitesse ; to pick up/lose speed prendre/perdre de la vitesse ; at the speed of light à la vitesse de la lumière ; ‘full speed ahead!’ Naut ‘en avant toute!’ ; what speed were you doing? à quelle vitesse est-ce que tu roulais or étais-tu? ; reading/typing speed vitesse de lecture/frappe ; to make all speed littér faire diligence liter ;
2 (gear) vitesse f ; three-speed bicycle vélo m à trois vitesses ;
3 Phot (of film) sensibilité f ; (of shutter) vitesse f d'obturation ;
4 (drug) speed m, amphétamines fpl.
B vtr (prét, pp sped ou speeded) hâter [process, recovery] ; rendre [qch] plus fluide [traffic] ; to speed sb on his/her way souhaiter bon voyage à qn.
C vi
1 (prét, pp sped) (move swiftly) to speed along aller à toute allure or à toute vitesse, foncer ; to speed away partir à toute vitesse ; the train sped past le train est passé à toute vitesse ;
2 (prét, pp speeded) (drive too fast) conduire trop vite ; he was caught speeding il a eu une contravention (pour excès) de vitesse ;
3 (on drugs) to be speeding être speedé .
Idioms
that's about my speed US c'est à peu près de mon niveau ; to be up to speed être au niveau.
Phrasal verb
speed up :
speed up [walker, train] aller plus vite ; [athlete, car] accélérer ; [worker] accélérer l'allure, travailler plus vite ;
speed up [sth], speed [sth] up accélérer [work, process, production] ; rendre [qch] plus fluide [traffic].

Big English-French dictionary. 2003.

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