aureole vs halo

aureole and halo both are nouns.

Word	Noun	Adjective	Verb	Adverb
aureole	Yes	No	No	No
halo	Yes	No	No	No

As nouns, aureole and halo are synonyms defined as:

aureole and halo: an indication of radiant light drawn around the head of a saint

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

aureole (noun)	halo (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
the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse	a circle of light around the sun or moon
	a toroidal shape