It is called observation.
They were called Jews.
I believe it is called a solstice.
Halakha
There are Jews all over the world. The one who live in Israel are Israeli Jews, like those in the U.S called American Jews.
People who practice Judaism are called Jews.
A gathering of nuns is called a nunnery. Or a convent.
A large gathering of people is called a group, mob, crowd or a mass.
They are called "Jews".
It is called a levee!
A clerical gathering is often referred to as a convocation, symposium, or conference.
A gathering
Tango
punnet
It is a Tribe.
A gathering of turkeys is called a flock. This is the term used for many different kinds of bird species.
A wake is held the night before the funeral. The gathering after the funeral is simply called a reception.