adjective
always used before a noun
done by a performer who is standing alone on a stage
performing stand-up comedy
done in or requiring a standing position
designed to stand upright
US informal :able to be trusted and respected :very good, loyal, etc.
Brit :involving very angry or violent behavior
noun
plural -ups
[noncount] :stand-up comedy
[count] :a performer who does stand-up comedy :a stand-up comedian
US