a combining form meaning “all,” used in the formation of compound words: omnifarious; omnipotence; omniscient.

Nearby words

  1. omn. bih.,
  2. omn. hor.,
  3. omn. man.,
  4. omn. noct.,
  5. omn. quadr. hor.,
  6. omnia mutantur, nos et mutamur in illis,
  7. omnia vincit amor,
  8. omnibearing,
  9. omnibus,
  10. omnibus clause

Origin of omni-

< Latin, combining form of omnis Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for omni

British Dictionary definitions for omni


combining form

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

Word Origin and History for omni


word-forming element meaning "all," from Latin omni-, combining form of omnis "all, every, the whole, of every kind," of unknown origin, perhaps literally "abundant," from *op-ni-, from PIE root *op- "to work, produce in abundance" (see opus).

Online Etymology Dictionary, © 2010 Douglas Harper