/ Dictionary / Index P pennyweight: Meaning and Definition of Find definitions for: pen•ny•weight Pronunciation: (pen'ē-wāt"), [key] — n. (in troy weight) a unit of 24 grains or of an ounce (1.555 grams). Abbr.: dwt, pwt Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pennyweight (Thesaurus) penny stock pennywort Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language