Noun: faith
|feyth|
A strong belief in a supernatural power or powers that control human destiny • he lost his faith but not his morality
=belief, religion, religious belief
Complete confidence in a person or plan etc • he cherished the faith of a good woman
=trust
An institution to express belief in a divine power • a member of his own faith contradicted him
=organized religion, religion
Loyalty or allegiance to a cause or a person • keep the faith • they broke faith with their investors
Derived
Noun: faithful
Adjective: faithful, faithless
This definition is from WordWeb