(up′ər) adjective
1. Higher than something else; being above.
2. Higher in place: opposed to lower.
3. Higher in station or dignity; superior: opposed to inferior: the upper house.
—to get the upper hand To get the advantage.
—noun
1. That part of a boot or shoe above the sole: the vamp.
2. plural Cloth gaiters.
3. Slang Any of various drugs that stimulate the central nervous system, as amphetamines.
—on one's uppers Colloq.
1. Having worn out the soles of one's shoes.
2. At the end of one's resources. [ME, orig. compar. of UP]

(up′ər) adjective Geol.
Designating a later period or a later formation of a specified period: the Upper Cambrian.