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annul

[uh-nuhl]
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verb (used with object), an·nulled, an·nul·ling.
  1. (especially of laws or other established rules, usages, etc.) to make void or null; abolish; cancel; invalidate: to annul a marriage.
  2. to reduce to nothing; obliterate.
  3. to cancel (a regularly scheduled train, plane, social event, etc.) for one day or one time only.
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Origin of annul

1375–1425; late Middle English < Anglo-French annuler < Late Latin adnūllāre render null (calque of Greek exoudeneîn), equivalent to ad- ad- + -nullāre, verbal derivative of Latin nūllus no, not any
Related formsan·nul·la·ble, adjectiveself-an·nul·ling, adjectiveun·an·nul·la·ble, adjectiveun·an·nulled, adjective
Can be confusedanal annual annul

Synonyms

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1. nullify; rescind, repeal.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for annul

annul

verb -nuls, -nulling or -nulled
  1. (tr) to make (something, esp a law or marriage) void; cancel the validity of; abolish
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Derived Formsannullable, adjective

Word Origin

C14: from Old French annuller, from Late Latin annullāre to bring to nothing, from Latin nullus not any; see null
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for annul

v.

late 14c., from Old French anuller (13c.) or directly from Late Latin annullare "to make to nothing," from Latin ad- "to" (see ad-) + nullum, neuter of nullus "nothing" (see null). Related: Annulled; annulling.

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Online Etymology Dictionary, © 2010 Douglas Harper