Long U

Long U is a vowel sound. It only appeared on the 9th season of Between the Lions.

Double O

 * ooch
 * oodle
 * oof
 * ool
 * oom
 * oon
 * oo
 * oop
 * oose
 * oot
 * ooth
 * ooze

Long U

 * une
 * ume
 * ue
 * ui
 * ute
 * ule
 * ube
 * ude
 * uth

O U as an U

 * ou

Pre-Season 1

 * Episode 02: The Lost Rock
 * Episode 13: Pandora's Box
 * Episode 18: Hug, Hug, Hug!
 * Episode 28: The Fox and the Crow
 * Episode 29: Giants and Cubs
 * Episode 30: Be Bop
 * Episode 32: Humph! Humph! Humph!
 * Episode 39: Teacher's Pet
 * Episode 44: Bug Beard
 * Episode 57: Pigs Aplenty

Seasons 1-3

 * Episode 07: Touching the Moon
 * Episode 35: Zoop! Zoop!
 * Episode 48: Why the Baboon's Balloon Went Ka-boom!
 * Episode 59: Too Cool

Post-Season 3

 * Episode 76: Click, Clack, Moo / The Little Red Hen
 * Episode 87: King Midas/The Dirty Smelly King
 * Episode 88: Cheesybreadville / Stolen Smells
 * Episode 100: Making Bread/Cheesybreadville
 * Episode 116: Priceless Gifts/King Midas
 * Episode 118: The Emperor's New Clothes/The Hungry Coat (only appearance)
 * Episode 122: A Birthday for Cow/Rabbit's Gift