attendee vs attendant

attendee and attendant both are nouns.

Word	Noun	Adjective	Verb	Adverb
attendee	Yes	No	No	No
attendant	Yes	Yes	No	No

As nouns, attendee and attendant are synonyms defined as:

attendee and attendant: a person who is present and participates in a meeting

Other synonyms of attendee include attender, meeter.

attendee (noun)	attendant (noun)
a person who is present and participates in a meeting	an event or situation that happens at the same time as or in connection with another
	someone who waits on or tends to or attends to the needs of another
	a person who is present and participates in a meeting

attendee (adjective)	attendant (adjective)
	being present (at a meeting or event, etc.)
	occurring with or following as a consequence