halo vs gloriole

halo and gloriole both are nouns.

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

As nouns, halo and gloriole are synonyms defined as:

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

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

halo (noun)	gloriole (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 circle of light around the sun or moon
a toroidal shape