/ Dictionary / Index S singletree: Meaning and Definition of Find definitions for: sin•gle•tree Pronunciation: (sing'gul-trē"), [key] — n. whiffletree. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. single-track single-valued Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language