immobilise vs stun

immobilise and stun both are verbs.

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

As verbs, stun is a hyponym of immobilise; that is, stun is a word with a more specific, narrower meaning than immobilise:

Other hyponyms of immobilise include paralyse, paralyze, stupefy.

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