/ Dictionary / Index R rillet: Meaning and Definition of Find definitions for: rill•et Pronunciation: (ril'it), [key] — n. a little rill; streamlet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rill rillettes Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language