faithful

 
Pronunciation: /ˈfeɪθfʊl, -f(ə)l/

adjective

  • 1remaining loyal and steadfast: the city has always been faithful to the Conservative party employees who had notched up decades of faithful service
  • (of a spouse or partner) never having a sexual relationship with anyone else: her husband was faithful to her
  • (of an object) reliable: my faithful compass
  • 2true to the facts or the original: the film was faithful to the book

noun

(as plural noun the faithful)
  • those who are faithful to a particular religion or political party: a muezzin called the faithful to prayer