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Synonyms and Antonyms of extension

  1. 1 the act of making longer <the board's extension of the school year drew howls of protest> Synonyms drawing out, elongation, lengthening, prolongation, prolonging, stretching Antonyms abbreviation, abridgment (or abridgement), curtailment, cutback, shortening

  2. 2 a smaller structure added to a main building <the new extension will connect the house with what is now a freestanding garage> Synonyms addition, annex, penthouseRelated Words arm, ell, wing

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