backspace - definition and synonyms

verb [intransitive] 

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/ˈbækˌspeɪs/
present tense
I/you/we/theybackspace
he/she/itbackspaces
present participlebackspacing
past tensebackspaced
past participlebackspaced
  1. to move back one or more spaces along a line of writing on a computer screen or on a typewriter