Synonyms for the word "apostle" include messenger, disciple, evangelist, preacher, ambassador, follower, envoy, missionary, delegate, and representative. These words are often used interchangeably with apostle to describe someone who is sent to spread a particular message or doctrine, often with religious connotations. While apostle specifically refers to one of the 12 followers of Jesus Christ, these other words can be used to describe religious figures from various faiths or people who spread ideas in a more secular context. Regardless of the specific word chosen, all these synonyms suggest someone with a specific purpose and calling to disseminate a particular message.