solemnization vs solemnisation

solemnization and solemnisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
solemnization	Yes	No	No	No
solemnisation	Yes	No	No	No

As nouns, solemnization and solemnisation are synonyms defined as:

solemnization and solemnisation: the public performance of a sacrament or solemn ceremony with all appropriate ritual

Other synonyms of solemnization include celebration.

solemnization (noun)	solemnisation (noun)
the public performance of a sacrament or solemn ceremony with all appropriate ritual	the public performance of a sacrament or solemn ceremony with all appropriate ritual