livelihood vs resource

livelihood and resource both are nouns.

Word	Noun	Adjective	Verb	Adverb
livelihood	Yes	No	No	No
resource	Yes	No	No	No

As nouns, resource is a hypernym of livelihood; that is, resource is a word with a broader meaning than livelihood:

livelihood: the financial means whereby one lives
resource: available source of wealth; a new or reserve supply that can be drawn upon when needed

livelihood (noun)	resource (noun)
the financial means whereby one lives	a source of aid or support that may be drawn upon when needed
	the ability to deal resourcefully with unusual problems
	available source of wealth; a new or reserve supply that can be drawn upon when needed