metric function vs physics

metric function and physics both are nouns.

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

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