WYES

Some railroad junctions

• Divining-rod shapes

• Dowsing rods, essentially

• Ex followers

• Exes appear before them

• Exes come before them

• Forks

• Forks in the road

• Letters after exes

• Letters before zees

• Penultimate letters

• Penultimate members of a well-known group

• Pygmy couple?

• Slingshot shapes

• Some branched pipes

• Some electrical junctions

• Some railroad switch points, e.g.

• Sometime vowels

• They come before zeds

• They follow exes

• Things that open and close yearly?

• Yesterday's beginning and end?

• Yucky couple?

• YYYYY

• Zee preceders

• Zees' forerunners