Y
- YEH
- Yehudi Menuhin
- yekaterinoslav
- Yelk
- yell
- yell out
- yelled
- yeller
- yelling
- yellow
- yellow adder's tongue
- yellow ageratum
- yellow asphodel
- Yellow Avens
- yellow bachelor's button
- yellow bass
- yellow bean
- yellow bedstraw
- yellow-bellied
- yellow-bellied sapsucker
- yellow-bellied terrapin
- yellow bells
- yellow-belly
- yellow berry
- yellow bile
- yellow birch
- yellow-blindness
- yellow-blue color blindness
- Yellow-blue Dichromacy
- yellow bone marrow
- yellow-breasted bunting
- yellow-breasted chat
- yellow bristle grass
- Yellow Bristlegrass
- yellow-brown
- yellow bugle
- yellow bunting
- yellow card
- Yellow Cattley Guava
- yellow cedar