As a Noun: 1. A building in which Christians worship. English = church. 2. A building used for the worship of a god or gods in some religions. English = temple. 3. One of the groups of people within the Christian religion, for example Catholics. English = church, denomination, religion. 4. A person who goes to church regularly. English = churchgoer. As a Verb or Adjective: 1. To be someone who goes to church regularly, has a strong belief in a god or gods, or who follows a particular religion closely. English = (be) religious.