defender vs escort

defender and escort both are nouns.

Word	Noun	Adjective	Verb	Adverb
defender	Yes	No	No	No
escort	Yes	No	Yes	No

As nouns, escort is a hyponym of defender; that is, escort is a word with a more specific, narrower meaning than defender:

defender (noun)	escort (noun)
a person who cares for persons or property	the act of accompanying someone or something in order to protect them
a fighter who holds out against attack	a participant in a date
	someone who escorts and protects a prominent person
	an attendant who is employed to accompany someone

defender (verb)	escort (verb)
	accompany as an escort
	conduct someone someplace