/ Dictionary / Index U user: Meaning and Definition of Find definitions for: us•er Pronunciation: (y'zur), [key] — n. a person or thing that uses. one who uses drugs, esp. as an abuser or addict. a person who uses a computer. us•er Pronunciation: ('zur), [key] — n. Law. the exercise of a right to the enjoyment of property. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: user (Thesaurus) Usenet user-friendly Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language