immobilizing vs immobilize

immobilizing is a noun but immobilize is not a noun.

Word	Noun	Adjective	Verb	Adverb
immobilizing	Yes	No	No	No
immobilize	No	No	Yes	No

immobilizing (noun)	immobilize (noun)
the act of limiting movement or making incapable of movement

immobilizing (verb)	immobilize (verb)
	cause to be unable to move
	prohibit the conversion or use of (assets)
	convert (assets) into fixed capital
	make defenseless
	to hold fast or prevent from moving
	hold as reserve or withdraw from circulation; of capital