attach vs adhere

attach and adhere both are verbs.

Word	Noun	Adjective	Verb	Adverb
attach	No	No	Yes	No
adhere	No	No	Yes	No

As verbs, adhere is a hyponym of attach; that is, adhere is a word with a more specific, narrower meaning than attach:

Other hyponyms of attach include agglutinate, implant, fasten, bind, bond, hold fast, stick, stick to, spat.

attach (verb)	adhere (verb)
become attached	follow through or carry out a plan without deviation
cause to be attached	stick to firmly
be attached; be in contact with	come or be in close contact with; stick or hold together and resist separation
take temporary possession of as a security, by legal authority	be compatible or in accordance with
create social or emotional ties	be loyal to
	be a devoted follower or supporter