/ Dictionary / Index O Osco-Umbrian: Meaning and Definition of Find definitions for: Os•co-Um•bri•an Pronunciation: (os'kō-um'brē-un), [key] — n. a group of languages, usually classified as Italic, that contains Oscan and Umbrian. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: osco-umbrian (Thesaurus) oscitant osculant Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language