verb (used with object), i·tem·ized, i·tem·iz·ing.

to state by items; give the particulars of; list the individual units or parts of: to itemize an account.
to list as an item or separate part: to itemize deductions on an income-tax return.

verb (used without object), i·tem·ized, i·tem·iz·ing.

to compute an income-tax return by listing separately all assets, credits, allowable deductions, losses, etc.

Nearby words

  1. itcz,
  2. itea,
  3. itelmen,
  4. item,
  5. item veto,
  6. itemized deduction,
  7. iter,
  8. iterance,
  9. iterant,
  10. iterate

Also especially British, i·tem·ise.

Origin of itemize

An Americanism dating back to 1855–60; item + -ize

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for itemise

  • How, one may well ask, are we to itemise the retail iniquities of a system of government which is itself a wholesale iniquity?

  • Lilly said she had often been in an apothecary's shop, but could not itemise the contents.

    The Song of Songs|Hermann Sudermann

British Dictionary definitions for itemise




(tr) to put on a list or make a list of
Derived Formsitemization or itemisation, 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

Word Origin and History for itemise



1864, American English, from item + -ize. Related: Itemized; itemizing. Earlier verb was simply item (c.1600).

Online Etymology Dictionary, © 2010 Douglas Harper