dustbin vs trash barrel

dustbin and trash barrel both are nouns.

Word	Noun	Adjective	Verb	Adverb
dustbin	Yes	No	No	No
trash barrel	Yes	No	No	No

As nouns, dustbin and trash barrel are synonyms defined as:

dustbin and trash barrel: a bin that holds rubbish until it is collected

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

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