internalization vs internalisation

internalization and internalisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
internalization	Yes	No	No	No
internalisation	Yes	No	No	No

As nouns, internalization and internalisation are synonyms defined as:

internalization and internalisation: learning (of values or attitudes etc.) that is incorporated within yourself

Other synonyms of internalization include incorporation.

internalization (noun)	internalisation (noun)
learning (of values or attitudes etc.) that is incorporated within yourself	learning (of values or attitudes etc.) that is incorporated within yourself