apologize vs apologise

apologize and apologise both are verbs.

Word	Noun	Adjective	Verb	Adverb
apologize	No	No	Yes	No
apologise	No	No	Yes	No

As verbs, apologize and apologise are synonyms defined as:

As verbs, apologize and apologise are synonyms defined as:

apologize and apologise: defend, explain, clear away, or make excuses for by reasoning

Other synonyms of apologize include excuse, rationalise, rationalize.

apologize (verb)	apologise (verb)
acknowledge faults or shortcomings or failing	acknowledge faults or shortcomings or failing
defend, explain, clear away, or make excuses for by reasoning	defend, explain, clear away, or make excuses for by reasoning