nimbus vs aura

nimbus and aura both are nouns.

Word	Noun	Adjective	Verb	Adverb
nimbus	Yes	No	No	No
aura	Yes	No	No	No

As nouns, nimbus and aura are synonyms defined as:

nimbus and aura: an indication of radiant light drawn around the head of a saint

Other synonyms of nimbus include aureole, gloriole, glory, halo.

nimbus (noun)	aura (noun)
an indication of radiant light drawn around the head of a saint	an indication of radiant light drawn around the head of a saint
a dark grey cloud bearing rain	a distinctive but intangible quality surrounding a person or thing
	a sensation (as of a cold breeze or bright light) that precedes the onset of certain disorders such as a migraine attack or epileptic seizure