What is the greek word for listener?

There isn't one single perfect Greek word for "listener" that captures all nuances of the English word. The best choice depends on the context. Here are a few options and their subtle differences:

* ἀκροατής (akroatēs): This is probably the closest single word. It refers to someone who listens to a lecture, speech, or performance. It implies a more formal or attentive listening than just passively hearing.

* ἀκούων (akouōn): This is the present participle of the verb ἀκούω (akouō), meaning "to hear" or "to listen." It's more descriptive of the act of listening itself than a label for the person. You could use it to say "the listener" but it's less direct.

The best word to use would depend heavily on the context. If you're talking about someone listening to a lecture, ἀκροατής is excellent. If you need a more general term, you might need a phrase instead of a single word.