Breadcrumb Home > Dictionary > Index O Cite omission: Meaning and Definition of Find definitions for: o•mis•sion Pronunciation: (ō-mish'un), [key] — n. the act of omitting. the state of being omitted. something left out, not done, or neglected: an important omission in a report. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omission (Thesaurus) omissible omissive TrendingHere are the facts and trivia that people are buzzing about. January 2021 Current Events: US News The Holocaust (1933–1945) Chinese New Year History, Meaning, and Celebrations Noble Titles and Ranks in a Monarchy The 5 Best Air Purifiers of 2020 Inaugural Trivia Related Content Daily Word Quiz: subrosa Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language