Advent, which means the coming ( of Christ in this context).
new years
If you mean Advent, you should know that this is not a term used by all Christian churches. It is originally a Roman Catholic concept, and it may also be used in the Anglican Communion. Most other denominations do not use the term.
christmas i think
Christmas. They call it La Navidad, but it's the same Christian holiday.
"congregation"
Methodists pray in Churches like other Protestant Christian Denominations.
Priest. The minister of some Christian churches, particularly Catholic, is the priest. Some may call them pastor. This is the person who may read scripture and preacher the word of the Lord! :)
Japanese people are mainly religious believers in Shinto or Buddhism, and Christmas is a Christian/Western holiday/belief.
Israel, as in the country that is predominantly non-Christian and therefore does not celebrate Christmas? They don't have much reason to call him anything.
No
Russians call Christmas рождество or rozhdestvo.
they call it Christmas Day!