natural philosophy vs tension

natural philosophy and tension both are nouns.

Word	Noun	Adjective	Verb	Adverb
natural philosophy	Yes	No	No	No
tension	Yes	No	No	No

natural philosophy (noun)	tension (noun)
the science of matter and energy and their interactions	the action of stretching something tight
	(physics) a stress that produces an elongation of an elastic physical body
	feelings of hostility that are not manifest
	the physical condition of being stretched or strained
	a balance between and interplay of opposing elements or tendencies (especially in art or literature)
	(psychology) a state of mental or emotional strain or suspense