A container for ashes, used in times past for accumulating ashes generated from wood and coal fires, for eventual disposal elsewhere.

A dustbin. (Can we add an example for this sense?)

(US, slang) A kind of large firecracker.

Of or pertaining to the Ashcan School of American art.

Describing a comic book originally published solely to retain ownership of a trademark, not intended for general release; later used for promotional comic books intended for limited release to the public.