nearby vs nigh

nearby and nigh both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nearby	No	Yes	No	Yes
nigh	No	Yes	No	Yes

nearby (adjective)	nigh (adjective)
close at hand	not far distant in time or space or degree or circumstances
	being on the left side

nearby (adverb)	nigh (adverb)
not far away in relative terms	near in time or place or relationship
	(of actions or states) slightly short of or not quite accomplished; all but