photosphere vs sun

photosphere and sun both are nouns.

Word	Noun	Adjective	Verb	Adverb
photosphere	Yes	No	No	No
sun	Yes	No	Yes	No

photosphere (noun)	sun (noun)
the intensely luminous surface of a star (especially the sun)	any star around which a planetary system revolves
	the star that is the source of light and heat for the planets in the solar system
	a person considered as a source of warmth or energy or glory etc
	the rays of the sun

photosphere (verb)	sun (verb)
	expose one's body to the sun
	expose to the rays of the sun or affect by exposure to the sun