dustbin vs ashbin

dustbin and ashbin both are nouns.

Word	Noun	Adjective	Verb	Adverb
dustbin	Yes	No	No	No
ashbin	Yes	No	No	No

As nouns, dustbin and ashbin are synonyms defined as:

Other synonyms of dustbin include ash-bin, ash bin, ashcan, garbage can, trash barrel, trash bin, trash can, wastebin.

dustbin (noun)	ashbin (noun)
a bin that holds rubbish until it is collected	a bin that holds rubbish until it is collected