Noun

• S: (n) upper berth, upper (the higher of two berths)
• direct hypernym / inherited hypernym / sister term
• S: (n) upper (piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot) "Uppers come in many styles"
• S: (n) amphetamine, pep pill, upper, speed (a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression)
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• S: (n) stimulant, stimulant drug, excitant (a drug that temporarily quickens some vital process)
• S: (n) amphetamine, pep pill, upper, speed (a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression)
• S: (n) analeptic (a medication used as a stimulant to the central nervous system)
• S: (n) aphrodisiac (a drug or other agent that stimulates sexual desire)
• S: (n) butyl nitrite, isobutyl nitrite (a colorless pungent liquid sometimes used as a stimulant drug by drug abusers)
• S: (n) kat, khat, qat, quat, cat, Arabian tea, African tea (the leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant) "in Yemen kat is used daily by 85% of adults"
• S: (n) methylphenidate, Ritalin (central nervous system stimulant (trade name Ritalin) used in the treatment of narcolepsy in adults and attention deficit disorder in children)
• S: (n) popper (a container of stimulant drug (amyl nitrate or butyl nitrite))
• S: (n) drug of abuse, street drug (a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction)
• S: (n) amphetamine, pep pill, upper, speed (a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression)
• S: (n) gateway drug (a habit-forming drug that is not addictive but its use may lead to the use of other addictive drugs) "one college athlete recently called beer a gateway drug for young people"
• S: (n) lysergic acid diethylamide, LSD (a powerful hallucinogenic drug manufactured from lysergic acid)
• S: (n) sedative, sedative drug, depressant, downer (a drug that reduces excitability and calms a person)
• S: (n) soft drug (a drug of abuse that is considered relatively mild and not likely to cause addiction)
• S: (n) tobacco, baccy (leaves of the tobacco plant dried and prepared for smoking or ingestion)
• S: (n) alcohol, alcoholic drink, alcoholic beverage, intoxicant, inebriant (a liquor or brew containing alcohol as the active agent) "alcohol (or drink) ruined him"

Adjective

• S: (adj) upper (the topmost one of two)
• S: (adj) upper (higher in place or position) "the upper bunk"; "in the upper center of the picture"; "the upper stories"
• similar to
• S: (adj) high ((literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high')) "a high mountain"; "high ceilings"; "high buildings"; "a high forehead"; "a high incline"; "a foot high"
• antonym
• W: (adj) low [Indirect via high] (literal meanings; being at or having a relatively small elevation or upward extension) "low ceilings"; "low clouds"; "low hills"; "the sun is low"; "low furniture"; "a low bow"
• S: (adj) upper (superior in rank or accomplishment) "the upper half of the class"
• similar to
• antonym