/ Dictionary / Index O ordinance: Meaning and Definition of Find definitions for: or•di•nance Pronunciation: (ôr'dn-uns), [key] an authoritative rule or law; a decree or command. a public injunction or regulation: a city ordinance against excessive horn blowing. something believed to have been ordained, as by a deity or destiny. an established rite or ceremony. a sacrament. the communion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ordinance (Thesaurus) ordinal number ordinand Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language