yeoman of the guard vs escort

yeoman of the guard and escort both are nouns.

Word	Noun	Adjective	Verb	Adverb
yeoman of the guard	Yes	No	No	No
escort	Yes	No	Yes	No

As nouns, escort is a hypernym of yeoman of the guard; that is, escort is a word with a broader meaning than yeoman of the guard:

yeoman of the guard: officer in the (ceremonial) bodyguard of the British monarch
escort: someone who escorts and protects a prominent person

Other hypernyms of yeoman of the guard include bodyguard.

yeoman of the guard (noun)	escort (noun)
officer in the (ceremonial) bodyguard of the British monarch	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

yeoman of the guard (verb)	escort (verb)
	accompany as an escort
	conduct someone someplace