/ Dictionary / Index R relier: Meaning and Definition of Find definitions for: re•li•er Pronunciation: (ri-lī'ur), [key] — n. a person or thing that relies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. relief valve relieve Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language