/ Dictionary / Index S sixteenpenny: Meaning and Definition of Find definitions for: six•teen•pen•ny Pronunciation: (siks'tēn'pen"ē), [key] — adj. noting a nail 3 in. (9 cm) long. Symbol: 16d Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sixteenmo sixteenth Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language