/ Dictionary / Index W water pocket: Meaning and Definition of Find definitions for: wa'ter pock"et Pronunciation: [key] a cavity at the foot of a cliff formed by the falling action of an intermittent stream. a plunge basin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. water plug water polo Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language