Main entry: pep pill, speed, amphetamine, upper
Definition: a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
Main entry: upper
Definition: piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
Usage: Uppers come in many styles
Main entry: upper, upper berth
Definition: the higher of two berths
Main entry: upper
Definition: higher in place or position
Usage: the upper bunk; in the upper center of the picture; the upper stories
Main entry: upper
Definition: superior in rank or accomplishment
Usage: the upper half of the class
Main entry: upper
Definition: the topmost one of two