memorization vs memorisation

memorization and memorisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
memorization	Yes	No	No	No
memorisation	Yes	No	No	No

As nouns, memorization and memorisation are synonyms defined as:

memorization and memorisation: learning so as to be able to remember verbatim

Other synonyms of memorization include committal to memory.

memorization (noun)	memorisation (noun)
learning so as to be able to remember verbatim	learning so as to be able to remember verbatim