Boo
Who
Stew
New
Crew
Sue
True
Clue
Blue
Zoo
Drew
Knew
Flew
Foo
I can't think of anything else
Ok, new word.
Roar
Bar
Tore
Tar
Boar
@White_Fang3
"Bar" and "Tar" rhyme, but not with "Roar"
Boo