upper vs amphetamine

amphetamine vs upper

upper and amphetamine both are nouns.

upper is an adjective but amphetamine is not an adjective.

Word	Noun	Adjective	Verb	Adverb
upper	Yes	Yes	No	No
amphetamine	Yes	No	No	No

As nouns, upper and amphetamine are synonyms defined as:

upper and amphetamine: a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

Other synonyms of upper include pep pill, speed.

upper (noun)	amphetamine (noun)
piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot	a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
the higher of two berths

upper (adjective)	amphetamine (adjective)
the topmost one of two; upper
higher in place or position
superior in rank or accomplishment

Difference between upper and amphetamine

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