[ 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

ap·por·tion·a·ble, adjectiveap·por·tion·er, nounnon·ap·por·tion·a·ble, adjectiveun·ap·por·tioned, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for apportioned

British Dictionary definitions for apportioned


/ (əˈpɔːʃən) /


(tr) to divide, distribute, or assign appropriate shares of; allot proportionallyto apportion the blame

Derived Forms

apportionable, adjectiveapportioner, 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