Definition of space bar in English English dictionary
A key, in the shape of a bar, near the bottom of a keyboard, that generates a space character when pressed
A bar or key, in a typewriter or typesetting machine, used for spacing between letters
A bar at the bottom of the keyboard of a typewriter or computer that when pressed down introduces a horizontal space into text, as between words. the wide key at the bottom of a computer keyboard or typewriter that you press to make a space