Definitions
1.AdjectiveLoyal; adhering firmly to person or cause."My dog is very faithful: he doesn't like to be petted by anybody else."
2.AdjectiveHaving faith.
3.AdjectiveReliable; worthy of trust."My servant is very faithful."
4.AdjectiveConsistent with reality."I would consider that a very faithful reproduction."
5.AdjectiveEngaging in sexual relations only with one's spouse or long-term sexual partner."They had been faithful to each other all of their married life."
6.AdjectiveInjective in specific contexts, e.g. of representations in representation or functors in category theory.
7.AdjectiveOf a module, whose annihilator is zero.
8.NounThe practicing members of a religion or followers of a cause."The faithful pray five times a day.; The annual meeting was attended by the long-term party faithful."
9.NounSomeone or something that is faithful or reliable.