1. The religious doctrines and rites of the Jews; conformity to the Jewish rites.

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

• jewdaism,
• juaism,
• judaim,
• buddism,
• judisam,
• judasm,
• judiusm,
• juadism,
• judiasm,
• judaisum,
• budism,
• judiaism,
• judism,
• judisim,
• judeism,
• juddism,
• judaisim,
• judaesm,
• judasim,
• judaisn

The adjective form of the word "Judaism" is "Jewish".

The plural form of the word "judaism" remains "judaism" since it refers to the religion itself rather than individual instances or practitioners of the religion.

The singular form of the word "judaism" is "Judaism".