/ Dictionary / Index U Uns: Meaning and Definition of Find definitions for: Uns Pronunciation: [key] unnilseptium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: uns (Thesaurus) UNRWA unsaddle Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language