verb (used with object), cus·tom·ized, cus·tom·iz·ing.

to modify or build according to individual or personal specifications or preference: to customize an automobile.

Also especially British, cus·tom·ise.

Origin of customize

An Americanism dating back to 1930–35; custom + -ize
Related formscus·tom·iz·a·ble, adjectivecus·tom·i·za·tion, nouncus·tom·iz·er, nounnon·cus·tom·ized, adjectivesem·i·cus·tom·ized, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for customise




(tr) to modify (something) according to a customer's individual requirements
Derived Formscustomization or customisation, 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 customise

chiefly British English spelling of customize (q.v.); for spelling, see -ize.



1934, "to make (something) to a customer's specifications," American English, from custom (adj.) + -ize. Related: Customizable; customization; customized; customizing.

Online Etymology Dictionary, © 2010 Douglas Harper