immortalize vs immortalise

immortalize and immortalise both are verbs.

Word	Noun	Adjective	Verb	Adverb
immortalize	No	No	Yes	No
immortalise	No	No	Yes	No

As verbs, immortalize and immortalise are synonyms defined as:

Other synonyms of immortalize include eternalise, eternalize, eternise, eternize.

As verbs, immortalize and immortalise are synonyms defined as:

immortalize and immortalise: be or provide a memorial to a person or an event

Other synonyms of immortalize include commemorate, memorialise, memorialize.

immortalize (verb)	immortalise (verb)
make famous forever	make famous forever
be or provide a memorial to a person or an event	be or provide a memorial to a person or an event