physics vs metric function

physics and metric function both are nouns.

Word	Noun	Adjective	Verb	Adverb
physics	Yes	No	No	No
metric function	Yes	No	No	No

physics (noun)	metric function (noun)
the science of matter and energy and their interactions	a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
the physical properties, phenomena, and laws of something