denationalization vs denationalisation

denationalization and denationalisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
denationalization	Yes	No	No	No
denationalisation	Yes	No	No	No

As nouns, denationalization and denationalisation are synonyms defined as:

denationalization and denationalisation: changing something from state to private ownership or control

Other synonyms of denationalization include privatisation, privatization.

denationalization (noun)	denationalisation (noun)
changing something from state to private ownership or control	changing something from state to private ownership or control