equerry vs attender

equerry and attender both are nouns.

Word	Noun	Adjective	Verb	Adverb
equerry	Yes	No	No	No
attender	Yes	No	No	No

As nouns, attender is a hypernym of equerry; that is, attender is a word with a broader meaning than equerry:

equerry: a personal attendant of the British royal family
attender: someone who waits on or tends to or attends to the needs of another

Other hypernyms of equerry include attendant, tender.

equerry (noun)	attender (noun)
an official charged with the care of the horses of princes or nobles	someone who waits on or tends to or attends to the needs of another
a personal attendant of the British royal family	a person who is present and participates in a meeting
	someone who listens attentively