/ Dictionary / Index S SK: Meaning and Definition of Find definitions for: SK Pronunciation: [key] Saskatchewan, Canada (approved for postal use). sk. Pronunciation: [key] sack. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. S.J. Res. ska Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language