/ Dictionary / Index W wye: Meaning and Definition of Find definitions for: wye Pronunciation: (wī), [key] — pl. wyes. the letter Y, or something having a similar shape. a three-phase,-shaped circuit arrangement. a track arrangement with three switches and three legs for reversing the direction of a train. Wye Pronunciation: (wī), [key] — n. a river flowing from central Wales through SW England into the Severn estuary. 130 mi. (210 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wye (Thesaurus) Wycliffite wye level Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language