/ Dictionary / Index N New Thought: Meaning and Definition of Find definitions for: New' Thought' Pronunciation: [key] a system of doctrine and practice originating in the 19th century and stressing the power of thought to control physical and mental events. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. new thing newton Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language