sorrow vs grief

sorrow and grief both are nouns.

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

As nouns, sorrow and grief are synonyms defined as:

As nouns, grief is a hyponym of sorrow; that is, grief is a word with a more specific, narrower meaning than sorrow:

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

sorrow (verb)	grief (verb)
feel grief