Any of several species of horse-like animals, especially Equus asinus, the domesticated of which are used as beasts of burden. / (slang) A stupid person. / (printing, slang, obsolete) A compositor.

(vulgar, slang) Of low quality; bad.

(vulgar, slang, countable and uncountable) Buttocks. / (vulgar, slang, countable and uncountable) Anus.

Synonym of -ass (“used to intensify an adjective”)

Used to intensify an adjective. / Used to convert an adjective into a noun for a person who has that trait. / Resembling.

(biochemistry) Initialism of argininosuccinate synthase.

(vulgar, slang, the third person singular) they (in the singular); them (in the singular); themself (in the singular); themselves (in the singular).

plural of ass

plural of as (“Roman coin”)

Obsolete spelling of ass