burning vs of import

burning is a noun but of import is not a noun.

Word	Noun	Adjective	Verb	Adverb
burning	Yes	Yes	No	No
of import	No	Yes	No	No

burning (noun)	of import (noun)
the act of burning something
execution by electricity
execution by fire
a form of torture in which cigarettes or cigars or other hot implements are used to burn the victim's skin
a process in which a substance reacts with oxygen to give heat and light
pain that feels hot as if it were on fire

burning (adjective)	of import (adjective)
of immediate import	of great significance or value