/ Dictionary / Index O omnibus: Meaning and Definition of Find definitions for: om•ni•bus Pronunciation: (om'nu-bus", -bus), [key] — n., pl. adj. -bus•es, -bus•ses, —n. bus (def. 1). a volume of reprinted works of a single author or of works related in interest or theme. —adj. pertaining to, including, or dealing with numerous objects or items at once: an omnibus bill submitted to a legislature. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omnibus (Thesaurus) omnibearing omnibus clause Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language