halo vs doughnut

halo and doughnut both are nouns.

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

As nouns, halo and doughnut are synonyms defined as:

Other synonyms of halo include anchor ring, annulus, ring.

halo (noun)	doughnut (noun)
an indication of radiant light drawn around the head of a saint	a small ring-shaped friedcake
a circle of light around the sun or moon	a toroidal shape
a toroidal shape