/ Dictionary / Index S sleeky: Meaning and Definition of Find definitions for: sleek•y Pronunciation: (slē'kē), [key] — sleek•i•er, sleek•i•est. sleek; smooth. sly; sneaky. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sleekit sleep Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language