bereaved person vs doer

bereaved person and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
bereaved person	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of bereaved person; that is, doer is a word with a broader meaning than bereaved person:

Other hypernyms of bereaved person include actor, worker.

bereaved person (noun)	doer (noun)
a person who has suffered the death of someone they loved	a person who acts and gets things done