photography vs x-ray

photography is a noun but x-ray is not a noun.

Word	Noun	Adjective	Verb	Adverb
photography	Yes	No	No	No
x-ray	No	No	Yes	No

photography (noun)	x-ray (noun)
the act of taking and printing photographs
the occupation of taking and printing photographs or making movies
the process of producing images of objects on photosensitive surfaces

photography (verb)	x-ray (verb)
	take an x-ray of something or somebody
	examine by taking x-rays