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[uh-pawr-shuh n, uh-pohr-] /əˈpɔr ʃən, əˈpoʊr-/
verb (used with object)
to distribute or allocate proportionally; divide and assign according to some rule of proportional distribution:
to apportion expenses among the three men.
Origin of apportion
1565-75; < Middle French apportionner, equivalent to ap- ap-1 + portionner to portion
Related forms
apportionable, adjective
apportioner, noun
nonapportionable, adjective
unapportioned, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for apportion
Contemporary Examples
Historical Examples
  • By its aid, I could apportion the life-time of any mortal at whom you might point your finger.

  • It is easier of digestion and easier to apportion in uniform rations.

  • "So apportion your wants that your means may exceed them," says Bulwer.

    How to Succeed Orison Swett Marden
  • It is not for any of us to think of attempting to apportion the blame.

    Problems of Expansion Whitelaw Reid
  • By its aid I could apportion the lifetime of any mortal at whom you might point your finger.

    The Short-story William Patterson Atkinson
  • One may apportion what he only holds in trust; he shares what is his own.

    English Synonyms and Antonyms James Champlin Fernald
  • And why has the state no right to equalize or apportion worldly wealth?

    Protection and Communism Frederic Bastiat
British Dictionary definitions for apportion


(transitive) to divide, distribute, or assign appropriate shares of; allot proportionally: to apportion the blame
Derived Forms
apportionable, adjective
apportioner, noun
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
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Word Origin and History for apportion

1570s, from Middle French apportionner, from Old French aporcioner "apportion, share out," from a- "to" (see ad-) + portioner "to divide into portions," from portion "share, portion" (see portion). Related: Apportioned; apportioning.

Online Etymology Dictionary, © 2010 Douglas Harper
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