audience vs attender

audience and attender both are nouns.

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

audience (noun)	attender (noun)
a conference (usually with someone important)	someone who waits on or tends to or attends to the needs of another
a gathering of spectators or listeners at a (usually public) performance	a person who is present and participates in a meeting
the part of the general public interested in a source of information, entertainment, or a product/service	someone who listens attentively
an opportunity to state your case and be heard