identical vs physics

identical is not a noun while physics is a noun.

Word	Noun	Adjective	Verb	Adverb
identical	No	Yes	No	No
physics	Yes	No	No	No

identical (noun)	physics (noun)
	the science of matter and energy and their interactions
	the physical properties, phenomena, and laws of something

identical (adjective)	physics (adjective)
(of twins) derived from a single egg or ovum
coinciding exactly when superimposed
having properties with uniform values along all axes
exactly alike; incapable of being perceived as different
being the exact same one; not any other: