generalisation vs theorization

generalisation and theorization both are nouns.

Word	Noun	Adjective	Verb	Adverb
generalisation	Yes	No	No	No
theorization	Yes	No	No	No

As nouns, theorization is a hypernym of generalisation; that is, theorization is a word with a broader meaning than generalisation:

generalisation: the process of formulating general concepts by abstracting common properties of instances
theorization: the production or use of theories

Other hypernyms of generalisation include theorisation.

generalisation (noun)	theorization (noun)
an idea or conclusion having general application	the production or use of theories
reasoning from detailed facts to general principles
(psychology) transfer of a response learned to one stimulus to a similar stimulus
the process of formulating general concepts by abstracting common properties of instances