canine vs zoology

canine and zoology both are nouns.

Word	Noun	Adjective	Verb	Adverb
canine	Yes	Yes	No	No
zoology	Yes	No	No	No

canine (noun)	zoology (noun)
any of various fissiped mammals with nonretractile claws and typically long muzzles	the branch of biology that studies animals
one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars	all the animal life in a particular region or period

canine (adjective)	zoology (adjective)
of or relating to or characteristic of members of the family Canidae
of or relating to a pointed conical tooth