A ghost or spirit, often malevolent, in Polynesian mythology.

Alternative form of aitchbone

(astronomy) One of the moons of Jupiter.

Alternative form of Aetolia

plural of aitu

One of 87 counties in Minnesota, United States. County seat: Aitkin.

plural of aitch-bone

(Internet slang) Initialism of am I the asshole/arsehole?.

Without pronouncing the /h/ sound.

(historical) A religious follower of Robert Aitken (1800–1873), Scottish popular preacher who formed The Christian Society, with his following primarily drawn from Methodist and Anglican believers, promoting a mix of evangelism and Tractarianism.