space bar
noun
a horizontal bar on a typewriter keyboard that is depressed in order to resume typing one space to the right.
a horizontal bar on a computer keyboard that is depressed in order to move the cursor one space to the right or, often, to perform some function in a program.
Origin of space bar
First recorded in 1885–90
Words nearby space bar
spa,
spaak,
spaatz,
space,
space age,
space bar,
space biology,
space blanket,
space cadet,
space capsule,
space carrier
British Dictionary definitions for space-bar
space-bar
noun
a horizontal bar on a typewriter that is depressed in order to leave a space between words, letters, etc