plural of otalgic

(fandom slang) One with an obsessive interest in something, particularly (originally derogatory) obsessive Japanese fans of anime or manga.

plural of otaku

A region in the South Island of New Zealand.

plural of otacousticon

(now rare) An instrument to aid hearing, such as an ear trumpet or hearing aid.

plural of otaman

Alternative form of ataman

plural of otary

An eared seal.