Definition of: omnibus

(om′nə·bəs, -bus) noun
1. A long passenger vehicle sometimes with two decks; a bus.
2. A printed anthology, either of works by a single author or of short stories, poems, etc., of the same general type: an omnibus of Westerns; a Conrad omnibus.
3. An omnibus box.
—adjective Covering a full collection of objects or cases: an omnibus bill. [<F <L, for all, dat. plural of omnis all]