Shi'itization is the process of becoming more Shi'ite in belief or practice.

He is a Shi'ite Muslim.

He is a Shi'ite.

The Shi'ites gather for their annual religious pilgrimage.

Shi'itism is a branch of Islam that holds that the Islamic prophet Muhammad designated Ali ibn Abi Talib as his successor.

He is a Shi'itic scholar.

He made several anti-Shi'ite remarks during the speech.