natural philosophy vs inclination

natural philosophy and inclination both are nouns.

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

natural philosophy (noun)	inclination (noun)
the science of matter and energy and their interactions	the act of inclining; bending forward
	a characteristic likelihood of or natural disposition toward a certain condition or character or effect
	the property possessed by a line or surface that departs from the vertical
	an attitude of mind especially one that favors one alternative over others
	that toward which you are inclined to feel a liking
	(physics) the angle that a magnetic needle makes with the plane of the horizon
	(geometry) the angle formed by the x-axis and a given line (measured counterclockwise from the positive half of the x-axis)
	(astronomy) the angle between the plane of the orbit and the plane of the ecliptic stated in degrees