/ ˈɒmnɪbəs; NAmE ˈɑːm-/ noun , adjective
■ noun
1.
( BrE ) a television or radio programme that combines several recent programmes in a series :
the 90-minute Sunday omnibus edition
2.
a large book that contains a number of books, for example novels by the same author
3.
( old-fashioned ) a bus
■ adjective
( NAmE ) including many things or different types of thing :
an omnibus law
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WORD ORIGIN
early 19th cent.: via French from Latin , literally for all , dative plural of omnis .