liquefy vs natural philosophy

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

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

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

liquefy (verb)	natural philosophy (verb)
become liquid or fluid when heated
make (a solid substance) liquid, as by heating
become liquid