[n] a round fastener sewn to shirts and coats etc to fit through buttonholes
[n] an electrical switch operated by pressing a button; "the elevator was operated by push buttons"; "the push beside the bed operated a buzzer at the desk"
[n] a female sexual organ homologous to the penis
[n] any of various plant parts that resemble buttons
[v] fasten with buttons; "button the dress"
[v] provide with buttons; "button a shirt"