[ mon-uh-thee-iz-uh m ]
/ ˈmɒn ə θiˌɪz əm /


the doctrine or belief that there is only one God.

Origin of monotheism

First recorded in 1650–60; mono- + (poly)theism

Related forms

mon·o·the·ist, noun, adjectivemon·o·the·is·tic, mon·o·the·is·ti·cal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monotheist

British Dictionary definitions for monotheist


/ (ˈmɒnəʊθɪˌɪzəm) /


the belief or doctrine that there is only one God

Derived Forms

monotheist, noun, adjectivemonotheistic, adjectivemonotheistically, adverb
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

Culture definitions for monotheist


A belief in one god. Judaism, Christianity, and Islam are all monotheistic religions. (Compare polytheism.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.