philosophizer vs philosophiser

philosophizer and philosophiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
philosophizer	Yes	No	No	No
philosophiser	Yes	No	No	No

As nouns, philosophizer and philosophiser are synonyms defined as:

philosophizer and philosophiser: someone who considers situations from a philosophical point of view

philosophizer (noun)	philosophiser (noun)
someone who considers situations from a philosophical point of view	someone who considers situations from a philosophical point of view