/ Dictionary / Index O Otis: Meaning and Definition of Find definitions for: O•tis Pronunciation: (ō'tis), [key] — n. 1811–61, U.S. inventor. 1837–1917, U.S. army officer and newspaper publisher. 1725–83, American lawyer and public official who is supposed to have first used the phrase “Taxation without representation” (brother of Mercy Otis Warren). a male given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: otis (Thesaurus) otiose otitis Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language