inactivation vs sacking

inactivation and sacking both are nouns.

Word	Noun	Adjective	Verb	Adverb
inactivation	Yes	No	No	No
sacking	Yes	No	No	No

As nouns, sacking is a hypernym of inactivation; that is, sacking is a word with a broader meaning than inactivation:

inactivation: breaking up a military unit (by transfers or discharges)
sacking: the termination of someone's employment (leaving them free to depart)

Other hypernyms of inactivation include discharge, dismissal, dismission, firing, liberation, release, sack.

inactivation (noun)	sacking (noun)
breaking up a military unit (by transfers or discharges)	the termination of someone's employment (leaving them free to depart)
the process of rendering inactive	coarse fabric used for bags or sacks