/ Dictionary / Index S sixteenth note: Meaning and Definition of Find definitions for: six'teenth' note" Pronunciation: [key] — Music. Music. a note having one sixteenth of the time value of a whole note; semiquaver. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sixteenth Amendment sixteenth rest Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language