Canonizes means to officially declare someone as a saint in the Catholic Church, but there are several synonyms that can be used to express similar meanings. One of the synonyms is "sanctifies" which means to make someone or something holy. Another synonym is "beatifies" which refers to the act of canonizing a person who has not yet been recognized as a saint, but whose life has been deemed worthy of veneration. "Glorifies" is also a synonym as it means to give honor, praise or glory to someone or something. Finally, "enthrones" is another synonym which refers to the act of giving someone a position of great authority or high honor, as is the case in canonization.