breadbox vs container

breadbox and container both are nouns.

Word	Noun	Adjective	Verb	Adverb
breadbox	Yes	No	No	No
container	Yes	No	No	No

As nouns, container is a hypernym of breadbox; that is, container is a word with a broader meaning than breadbox:

breadbox: a container used to keep bread or cake in
container: any object that can be used to hold things (especially a large metal boxlike object of standardized dimensions that can be loaded from one form of transport to another)

breadbox (noun)	container (noun)
a container used to keep bread or cake in	any object that can be used to hold things (especially a large metal boxlike object of standardized dimensions that can be loaded from one form of transport to another)