A shirt with a button-down collar

A button on a corset.

Any of a line of preset buttons on a car radio used to select the station to be listened to; pressing one releases the others

(informal) The navel.

Arousing intense reactions; eliciting strong emotion or controversy.

Which can be initiated or activated at the push of a button.

An electrical switch activated by pressing a button.

A central issue, concern or characteristic, especially one that motivates people to make a choice. / (marketing) The principal desire that a salesman needs to "hit" in order to make a sale.

(video games) The act of repeatedly pressing random buttons on a video game controller in hopes of executing attacks and/or other various motions found in video games.

present participle of button mash