Definition of 'upper'

Noun

1. the higher of two berths
      Synonyms: upper berth
2. 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"
3. a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
      Synonyms: amphetamine pep pill speed

Adjective

1. higher in place or position; "the upper bunk"; "in the upper center of the picture"; "the upper stories"
2. the topmost one of two
3. superior in rank or accomplishment; "the upper half of the class"

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