1. The religion of the Jainas.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• oginism,
• feinism,
• imigism,
• janism,
• jeinism,
• jaynism,
• jainast,
• lainist,
• maidizm,
• mazidism,
• maaidism,
• laiism,
• latnism,
• paenism,
• Jaivist,
• jahvusm,
• jaikim,
• jahnise,
• zannism,
• vereism

• Jamieson,
• Janssen,
• Jansson,
• jamison,
• jansen,
• Janson,
• jansenism,
• jansenist.

The adjective form of the word "Jainism" is "Jain".

The plural form of the word "Jainism" is "Jainisms".

The singular form of the word "Jainism" is "Jainism" itself. "Jainism" is already a singular noun referring to the Indian religion that emphasizes non-violence and asceticism.