(idiomatic) Alternative form of button-down

Agaricus bisporus, the white or common mushroom.

plural of button accordion

An accordion with a keyboard in the form of series of buttons.

(electronics) A button that resets something.

(broadcasting) A button that temporarily stops the recording and transmission of a radio show.

(computing, graphical user interface) a labeled button in some versions of the Microsoft Windows operating system that opens the Start menu.

A simple fastener, for a door or window, consisting of a short bar that rotates about a pivot attached to the frame

Conservative. / Carefully planned and executed.

A small coin cell