stun vs immobilize

stun and immobilize both are verbs.

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

As verbs, immobilize is a hypernym of stun; that is, immobilize is a word with a broader meaning than stun:

Other hypernyms of stun include immobilise.

stun (verb)	immobilize (verb)
make senseless or dizzy by or as if by a blow	cause to be unable to move
hit something or somebody as if with a sandbag	prohibit the conversion or use of (assets)
overcome as with astonishment or disbelief	convert (assets) into fixed capital
	make defenseless
	to hold fast or prevent from moving
	hold as reserve or withdraw from circulation; of capital