1. The migration of the Prophet Muhammad from Mecca to Medina in 622 CE, marking the beginning of the Islamic calendar.
Usage: capitalized when referring to the historical event; also spelled 'hegira' or 'hejira'
2. Any migration or journey, especially one undertaken for religious or moral reasons.
Usage: lowercase when used in a general sense; often used metaphorically

Examples

• The Hijra is a pivotal event in Islamic history and marks year one of the Islamic calendar.
• Muslims commemorate the Hijra as a symbol of faith and perseverance.
• The Prophet's hijra from Mecca to Medina established the first Islamic community.
• Some scholars view the hijra as a model for spiritual migration and personal transformation.
• The Islamic calendar is based on the date of the Hijra, which occurred in 622 CE.