/ Dictionary / Index W wl: Meaning and Definition of Find definitions for: wl Pronunciation: [key] Also,water line. wavelength. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wkly. Wladimir 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