1. one of the twelve disciples chosen by Jesus Christ to spread his teachings
Usage: religious
2. a person who strongly supports or promotes a particular belief, cause, or movement

Examples

• Peter was one of the twelve apostles of Jesus.
• The apostle Paul wrote many letters to early Christian communities.
• She became an apostle of environmental conservation.
• He was known as an apostle of peace and nonviolence.
• The apostles spread Christianity throughout the Roman Empire.
• Many consider her an apostle of women’s rights.
• The apostle Matthew was a tax collector before following Jesus.