visor vs vizor

visor and vizor both are nouns.

Word	Noun	Adjective	Verb	Adverb
visor	Yes	No	No	No
vizor	Yes	No	No	No

As nouns, visor and vizor are synonyms defined as:

Other synonyms of visor include bill, eyeshade, peak.

As nouns, visor and vizor are synonyms defined as:

visor and vizor: a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face

visor (noun)	vizor (noun)
a brim that projects to the front to shade the eyes	a brim that projects to the front to shade the eyes
a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face	a piece of armor plate (with eye slits) fixed or hinged to a medieval helmet to protect the face