/ Dictionary / Index S synesis: Meaning and Definition of Find definitions for: syn•e•sis Pronunciation: (sin'u-sis), [key] — n. Gram. a construction in which an expected grammatical agreement in form is replaced by an agreement in meaning, as in The crowd rose to their feet, where a plural pronoun is used to refer to a singular noun. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. synergy synesthesia Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language