A group of people.
It's called a synagogue congregation.
A congregation of worshipers, an assembly or a gathering
The people attending a church service are called a congregation.
The formal five-times-daily prayer is called "salat." Although a person may offer salat alone, it is preferred to offer salat in congregations. The bigger the congregation, the greater the reward for the prayer. When salat is offered in congregation, the person who leads the prayer is called the "imam." The imam may be a professional hired by a congregation, or may be an ordinary Muslim. The imam should be the oldest person in the congregation, or the one who is most knowledgeable about Islam and the Holy Qur'an.
I don't know if there is a word that refers to a small group of people at a church, but I do know that a group of people at a church if you are referring to everyone in the church as a whole would be called a congregation.
congregation
Congregation.
Congregation.
a congregation is the collective noun for birds
congregation
becouse it is
Nave