/ Dictionary / Index O one-note: Meaning and Definition of Find definitions for: one-note Pronunciation: (wun'nōt"), [key] lacking in variety; monotonous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. one-night stand one old cat Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language