grief vs sorrow

grief and sorrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
grief	Yes	No	No	No
sorrow	Yes	No	Yes	No

As nouns, grief and sorrow are synonyms defined as:

As nouns, sorrow is a hypernym of grief; that is, sorrow is a word with a broader meaning than grief:

grief (noun)	sorrow (noun)
something that causes great unhappiness	something that causes great unhappiness
intense sorrow caused by loss of a loved one (especially by death)	an emotion of great sadness associated with loss or bereavement
	sadness associated with some wrong done or some disappointment
	the state of being sad

grief (verb)	sorrow (verb)
	feel grief