foot vs hoof

foot and hoof both are nouns.

Word	Noun	Adjective	Verb	Adverb
foot	Yes	No	Yes	No
hoof	Yes	No	Yes	No

As nouns, hoof is a hyponym of foot; that is, hoof is a word with a more specific, narrower meaning than foot:

Other hyponyms of foot include fossorial foot, bird's foot, webfoot, trotter, forefoot, hindfoot, paw.

As verbs, foot and hoof are synonyms defined as:

Other synonyms of foot include hoof it, leg it.

foot (noun)	hoof (noun)
travel by walking	the foot of an ungulate mammal
any of various organs of locomotion or attachment in invertebrates	the horny covering of the end of the foot in ungulate mammals
the pedal extremity of vertebrates other than human beings
lowest support of a structure
a support resembling a pedal extremity
the part of the leg of a human being below the ankle joint
(prosody) a group of 2 or 3 syllables forming the basic unit of poetic rhythm
an army unit consisting of soldiers who fight on foot
the lower part of anything
a member of a surveillance team who works on foot or rides as a passenger
a linear unit of length equal to 12 inches or a third of a yard

foot (verb)	hoof (verb)
add a column of numbers	dance in a professional capacity
walk	walk
pay for something