plural of button man

(slang) A contract killer; a professional assassin.

present participle of button up

(graphical user interface) A radio button.

(video games) A button on a joystick or joypad that corresponds to the action of firing a weapon, but often represents other in-game actions.

(construction) indenting two or more thicknesses of metal that are pressed against each other to prevent slippage between the metal.

simple past tense and past participle of button up

(usually in the plural) Any one of a number of plants with daisylike, button shaped flowers of the genus Centaurea, especially the species Centaurea cyanus.

(usually in the plural) Any one of a number of plants with daisylike, button shaped flowers. / Button which may be attached to clothing without resorting to needle and thread.

Agaricus bisporus, the white or common mushroom.