C1 noun /əˈpɒsəl/
apostle
प्रचारक, समर्थक
Meaning
A vigorous and pioneering advocate or supporter of a particular cause, often used for the early Christian disciples.
Example
He became an apostle of environmental protection.
वह पर्यावरण संरक्षण का एक प्रेरक बन गया।