nearly vs almost

nearly and almost both are adverbs.

Word	Noun	Adjective	Verb	Adverb
nearly	No	No	No	Yes
almost	No	No	No	Yes

As adverbs, nearly and almost are synonyms defined as:

nearly and almost: (of actions or states) slightly short of or not quite accomplished; all but

Other synonyms of nearly include about, most, near, nigh, virtually, well-nigh.

nearly (adverb)	almost (adverb)
(of actions or states) slightly short of or not quite accomplished; all but	(of actions or states) slightly short of or not quite accomplished; all but
in a close manner