physics vs liquefy

physics is a noun but liquefy is not a noun.

Word	Noun	Adjective	Verb	Adverb
physics	Yes	No	No	No
liquefy	No	No	Yes	No

physics (noun)	liquefy (noun)
the science of matter and energy and their interactions
the physical properties, phenomena, and laws of something

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