English

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Etymology

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un- +‎ abbreviate

Verb

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unabbreviate (third-person singular simple present unabbreviates, present participle unabbreviating, simple past and past participle unabbreviated)

  1. (uncommon, transitive) To make unabbreviated, to expand something which was abbreviated.
    Synonym: (rare) deabbreviate
    • 1967, Stephen Cole Kleene, Mathematical Logic, Dover, published 2002, page 293:
      It is easy to see what is going on, if in G & ∀x∃yP(x, y) we not only unabbreviate G, but take the outer conjunctions apart, []
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