energy vs vigour

energy and vigour both are nouns.

Word	Noun	Adjective	Verb	Adverb
energy	Yes	No	No	No
vigour	Yes	No	No	No

As nouns, energy and vigour are synonyms defined as:

Other synonyms of energy include vigor, zip.

As nouns, energy and vigour are synonyms defined as:

energy and vigour: an imaginative lively style (especially style of writing)

Other synonyms of energy include muscularity, vigor, vim.

energy (noun)	vigour (noun)
forceful exertion	active strength of body or mind
an imaginative lively style (especially style of writing)	an imaginative lively style (especially style of writing)
enterprising or ambitious drive	forceful exertion
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs
any source of usable power
a healthy capacity for vigorous activity