/ Dictionary / Index U underplot: Meaning and Definition of Find definitions for: un•der•plot Pronunciation: (un'dur-plot"), [key] — n. a plot subordinate to another plot, as in a novel. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. underplay underpopulated Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language