from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To move the cursor on a computer screen or the carriage of a typewriter back one or more spaces by striking the key used for this purpose.
- n. The key on a keyboard or typewriter used for backspacing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The key on a typewriter that moves the head one position backwards.
- n. A keyboard key used for removing a character behind the cursor, and moving the cursor one position backwards.
- v. To remove a character behind a cursor.
- v. To move a magnetic tape to a previous block.
from the GNU version of the Collaborative International Dictionary of English
- n. The key on a typewriter or other keyboard used for back spacing.
- intransitive v. In typing text, to press the backspace key so as to reposition the carriage or cursor on the previous space.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the typewriter key used for back spacing
- v. hit the backspace key on a computer or typewriter keyboard
back + space (Wiktionary)