worm - ℝ-or
- Yellow Boy
- yellow brick road
- yellow cake
- yellow card
- yellow dog
- yellow dog contract
- yellow fever
- yellow horde
- yellow jack
- yellow jersey
- yellow jessamine
- yellow journalism
- yellow light
- yellow locust
- yellow onion
- yellow oriole
- yellow pages
- yellow perch
- yellow peril
- yellow phosphorus
- yellow pine
- yellow pocket
- yellow poplar
- yellow press
- yellow rattle
- Yellow Sea
- yellow sheet
- yellow snow
- yellow spot
- yellow warbler
- yellow wood anemone
- yellow woodland anemone
- yellow-bellied
- yellow-bellied sapsucker
- yellow-billed loon
- yellow-breasted chat
- yellow-card
- yellow-eyed penguin
- yellow-green
- yellow-green alga