button
but-ton
noun
A small, pressable control on a device to activate a function.
"Press the red button to start the machine."
noun
A small, round fastener sewn onto clothing, pushed through a buttonhole.
"She did up the top button of her coat."
verb
To fasten clothing by pushing buttons through their corresponding buttonholes.
"He buttoned up his shirt quickly."
Thesaurus
Synonyms: clit, clitoris, release, push button, push
Antonyms: unbutton