Answer:

wye

Answer	Crossword Clue
WYE	Letter
WYE	Fourth of July?
WYE	Three-way circuit

WYE	Ex follower
WYE	Three-switch railroad track section
WYE	End of eternity?
WYE	Fork-in-the-road shape
WYE	One before zee
WYE	Penultimate letter
WYE	Zee preceder
WYE	The fourth of July?

WYE	Fork, slingshot, or divining rod
WYE	Ex-zee go-between
WYE	Letter that sounds like a question
WYE	Follower of ex
WYE	Scary finish?
WYE	Letter before zee
WYE	Inquisitive-sounding letter
WYE	... Accord (1998 Mideast peace pact)

WYE	Scary ending?
WYE	After ex
WYE	English river
WYE	Happy ending?
WYE	River to the Severn
WYE	Forked letter
WYE	Ex, .., zee
WYE	Welsh river

WYE	25th of a certain 26
WYE	Next-to-last letter
WYE	Road-fork shape
WYE	Slingshot shape
WYE	Very end
WYE	River in England and Wales.
WYE	River of Wales and England.
WYE	Letter of the alphabet.

WYE	River into the Severn.
WYE	Letter.
WYE	River of Wales.
WYE	Ex successor
WYE	Forked shape