How do you spell Ritual

Available Definitions:
1)  a. - Of or pertaining to rites or ritual; as, ritual service or sacrifices; the ritual law.
2)  n. - A prescribed form of performing divine service in a particular church or communion; as, the Jewish ritual.
3)  n. - Hence, the code of ceremonies observed by an organization; as, the ritual of the freemasons.
4)  n. - A book containing the rites to be observed.