unbind vs bind

unbind is not a noun while bind is a noun.

Word	Noun	Adjective	Verb	Adverb
unbind	No	No	Yes	No
bind	Yes	No	Yes	No

unbind (noun)	bind (noun)
	something that hinders as if with bonds

unbind (verb)	bind (verb)
untie or unfasten	cause to be constipated
	form a chemical bond with
	bind by an obligation; cause to be indebted
	make fast; tie or secure, with or as if with a rope
	fasten or secure with a rope, string, or cord
	provide with a binding
	stick to firmly
	secure with or as if with ropes
	wrap around with something so as to cover or enclose
	create social or emotional ties