/ Dictionary / Index P plus tick: Meaning and Definition of Find definitions for: plus' tick" Pronunciation: [key] — Stock Exchange. Stock Exchange. uptick (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plus sign Plutarch Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language