bind vs chain up

bind is a noun but chain up is not a noun.

Word	Noun	Adjective	Verb	Adverb
bind	Yes	No	Yes	No
chain up	No	No	Yes	No

As verbs, chain up is a hyponym of bind; that is, chain up is a word with a more specific, narrower meaning than bind:

Other hyponyms of bind include faggot, faggot up, fagot, faggot, fagot, hog-tie.

bind (noun)	chain up (noun)
something that hinders as if with bonds

bind (verb)	chain up (verb)
cause to be constipated	tie up with chains
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