quantization vs quantisation

quantization and quantisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
quantization	Yes	No	No	No
quantisation	Yes	No	No	No

As nouns, quantization and quantisation are synonyms defined as:

quantization and quantisation: the act of dividing into quanta or expressing in terms of quantum theory

quantization (noun)	quantisation (noun)
the act of dividing into quanta or expressing in terms of quantum theory	the act of dividing into quanta or expressing in terms of quantum theory