/ Dictionary / Index K Kelso: Meaning and Definition of Find definitions for: Kel•so Pronunciation: (kel'sō), [key] — n. a town in SW Washington. 11,129. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Kelsey kelson Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language