Breadcrumb Home > Dictionary > Index P plunge basin: Meaning and Definition of Find definitions for: plunge' ba"sin Pronunciation: [key] a cavity at the base of a falls or cataract, formed by the action of the falling water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plunge plunge pool TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: miasma Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language