backspace

From Wiktionary
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The Simple English Wikipedia has an article on:

Word parts[change]

back + space

Pronunciation[change]

Noun[change]

Singular
backspace

Plural
backspaces

  1. (countable) A backspace is a key on the keyboard of a computer or typewriter that erases the letter before the cursor.
    I pressed backspace because I accidentally typed the wrong letter.

Verb[change]

Plain form
backspace

Third-person singular
backspaces

Past tense
backspaced

Past participle
backspaced

Present participle
backspacing

  1. (intransitive) (computing) When you backspace, you erase the letter before the cursor.
    No, that's wrong. Backspace here, and delete this word too.