There are 2 definitions of wye in English:

wye1

Line breaks: wye
Pronunciation: /wʌɪ
 
/

noun

1North American A triangle of railway 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.
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.

Origin

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

Definition of wye in:

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Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous

There are 2 definitions of wye in English:

Wye2

Line breaks: Wye
Pronunciation: /wʌɪ
 
/
A river which rises in the mountains of western Wales and flows 208 km (132 miles) generally south-eastwards, entering the Severn estuary at Chepstow. In its lower reaches it forms part of the border between Wales and England.

Definition of wye in:

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Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous