There are no dumb questions on this blog - I’ll answer anything and anyone to the best of my ability.
Therian: A person who identifies as a nonhuman animal
Otherkin: A person who identifies as a nonhuman, nonanimal creature (althernatively: a person who identifies as nonhuman, animal or otherwise; I do not use this definition but many people do)
Furry: Someone who is part of the “furry” subculture
If you’d like more in-depth descriptions just ask ~