There are 2 main definitions of wye in English:


Syllabification: wye


1A support or other structure shaped like a Y, in particular.
1.1North American A triangle of railroad track, used for turning locomotives or trains.
More example sentences
  • Today the goal is to re-lay 4 kilometers of track to reach the wye at this point.
  • There are also ten secondary tracks used for minor repairs, a train-wash, and a loop track and a wye.
  • This facility was first located off Markham Road on the south side of Oshawa Sub. mainline with a wye into it.
1.2(In plumbing) a short pipe with a branch joining it at an acute angle.
More example sentences
  • We suspect that the 90 [degrees], three-way connector between the ETT and the wye trapped aerosolized particles.
  • Pipe wyes are used to to allow one pipe to join another pipe at some degree or angle.
  • As the name suggests, the pipe wyes are Y-shaped pipe fitting devices.


mid 19th century: the letter Y represented as a word.

Definition of wye in:

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There are 2 main definitions of wye in English:


Syllabification: Wye
A river that rises in the mountains of western Wales and flows southeast for about 132 miles (208 km) before entering the Severn estuary at Chepstow. In its lower reaches it forms part of the border between Wales and England.

Definition of wye in: