Meaning of UPPER in English

UPPER

~ 1

■ adjective

1》 situated above another participle

↘higher in position or status.

↘(often Upper ) Geology & Archaeology denoting a younger (and hence typically shallower) part of a stratigraphic or archaeological division: the Upper Palaeolithic.

2》 situated on higher ground.

3》 [in place names ] situated to the north.

■ noun the part of a boot or shoe above the sole.

Phrases

have (or gain ) the ~ hand have (or gain) an advantage or control.

on one's ~s informal extremely short of money.

the ~ crust informal the ~ classes.

Origin

ME: from the adjective up + -er 2 .

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~ 2

■ noun informal a stimulating drug, especially an amphetamine.

Origin

1960s: from the verb up + -er 1 .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.