HOOF is a playable word

hoof Scrabble® Dictionary

noun
pl. hooves or hoofs
the hard covering on the feet of certain animals
verb
hoofed, hoofing, hoofs
to dance
10 Playable Words can be made from "HOOF"
   2-Letter Words (3 found)
   3-Letter Words (6 found)
   4-Letter Words (1 found)