fiducial vs natural philosophy

fiducial is not a noun while natural philosophy is a noun.

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

fiducial (noun)	natural philosophy (noun)
	the science of matter and energy and their interactions

fiducial (adjective)	natural philosophy (adjective)
relating to or of the nature of a legal trust (i.e. the holding of something in trust for another)
used as a fixed standard of reference for comparison or measurement
based on trust