a combining form meaning “all,” used in the formation of compound words: omnifarious; omnipotence; omniscient.
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Origin of omni-
< Latin, combining form of omnis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for omni-
all or everywhereomnipresent
Word Origin for omni-
from Latin omnis all
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