(n.) One who stands under the eaves, or near the window or door of a house, to listen; hence, a secret listener.

Paul Pry Peeping Tom audient auditor busybody gossip hearer hearkener inquirer inquisitive inquisitor listener nosy Parker overhearer pry querier querist questioner quidnunc rubberneck rubbernecker scopophiliac sightseer snoop snooper voyeur yenta