Speed is a slang term for the street drug methamphetamine.
(Informal) An upper berth, as in a Pullman car
(Slang) Any of various pills or tablets containing a stimulant, esp. amphetamine
Find another word for amphetamine. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for amphetamine, like: speed, upper, pep pill, benzedrine, dexamyl and dexedrine.