speed Pronunciation: /spiːd/Translate speed | into German | into Italian | into Spanish French translation of speedA. n 1 vitesse (f); (of response, reaction) rapidité (f) at top speed = à toute vitesse 2 (colloq) (drug) amphétamines (fpl)B. vtr hâter [process, recovery]C. vi 1to speed along [driver, car] = rouler à toute allure to speed away = s'eloigner à toute allure 2 (drive too fast) conduire trop vitePhrasal verbs speed upA. [walker] aller plus vite; [athlete, driver, car] accélérer; [worker] travailler plus viteB. accélérerspeed in other Oxford dictionaries Definition of speed in the British & World English dictionary Definition of speed in the US English dictionary