missionary
/ˌmɪʃəˈnɛəri, ˌmɪʃəˈnɛri/Definitions
1. noun
A person sent or commissioned to do work or to spread a particular set of beliefs or values, especially in a foreign country.
“The missionary worked tirelessly to spread Christianity throughout the remote village.”
2. adjective
Relating to or supporting the work of spreading a particular set of beliefs or values.
“The missionary organization is a humanitarian effort with a strong missionary component.”