English

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Etymology

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un- +‎ shift

Verb

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unshift (third-person singular simple present unshifts, present participle unshifting, simple past and past participle unshifted)

  1. (intransitive) To release the shift key on a computer or typewriter keyboard.
  2. (transitive, programming) To add an item to the beginning of an array.

Antonyms

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  • (antonym(s) of programming): shift