Definition of "evangelize"

evangelize

/ɪˈvænd͡ʒəlaɪz/

verb
third-person singular simple present evangelizes, present participle evangelizing, simple past and past participle evangelized
1. To tell people about (a particular branch of) Christianity, especially in order to convert them; to preach the gospel to.
  Quotations
  his Apoſtles, whom he ſends To evangelize the Nations
  1667, John Milton, “Book X”, in Paradise Lost. […], London: […] [Samuel Simmons], […]; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873, lines 1389–1390
2. To preach any ideology to those who have not yet been converted to it.
  Quotations
  […] nor is it the task of the Muslim to "evangelize" the unbelieving world.
  2002, Ergun Mehmet Caner, Emir Fethi Caner, Unveiling Islam: An Insider's Look at Muslim Life and Beliefs, page 11
3. To be enthusiastic about something, and to attempt to share that enthusiasm with others; to promote.