/ Dictionary / Index P punctuation: Meaning and Definition of Find definitions for: punc•tu•a•tion Pronunciation: (pungk"ch-ā'shun), [key] — n. the practice or system of using certain conventional marks or characters in writing or printing in order to separate elements and make the meaning clear, as in ending a sentence or separating clauses. the act of punctuating. punctuation marks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: punctuation (Thesaurus) punctuated equilibrium punctuationalism Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language