Definition of on a high
- He was on a high after receiving the promotion.
: rising or extending upward a great distance : taller than average, usual, or expected
: having a specified height or elevation : tall
: situated or passing above the normal level, surface, base of measurement, or elevation
: at or to a high place, altitude, level, or degree
: well, luxuriously
: an elevated place or region: such as
: hill, knoll
: the space overhead : sky
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