/ Dictionary / Index C chechako: Meaning and Definition of Find definitions for: che•cha•ko Pronunciation: (chē-chä'kō), [key] — pl. -kos. (in the Pacific Northwest) cheechako. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Chebyshev polynomial Chechen Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language