backspace

noun

1. The key on a typewriter that moves the head one position backwards.
2. A keyboard key used for removing a character behind the cursor, and moving the cursor one position backwards.
3. A non-printable text character representing a backspace.

verb

1. To remove a character behind a cursor.

   “So once you hit 'E', just backspace.”

2. To move a magnetic tape to a previous block.