body guard vs escort

body guard is not a noun while escort is a noun.

Word	Noun	Adjective	Verb	Adverb
body guard	No	No	Yes	No
escort	Yes	No	Yes	No

body guard (noun)	escort (noun)
	the act of accompanying someone or something in order to protect them
	a participant in a date
	someone who escorts and protects a prominent person
	an attendant who is employed to accompany someone

body guard (verb)	escort (verb)
accompany and protect from physical harm	accompany as an escort
	conduct someone someplace