Open English Wordnet
Nouns
(n)upperpiece 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” (n)amphetamine, pep pill, upper, speeda central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression Adjectives
(a)upperthe topmost one of two; upper (s)upperhigher in place or position“the upper bunk”,
“in the upper center of the picture”,
“the upper stories” (s)uppersuperior in rank or accomplishment“the upper half of the class”