Mittagessen.
The plural form for the noun luncheon is luncheons.
It would be unwise to decline an invitation to attend a luncheon with the Queen. In America, plain old baloney is sometimes labelled as luncheon meat. Will you join me for a pleasant luncheon?
No, because it isnot a propernoun.
Luncheon
two (2)
luncheon
When having a luncheon and you want to be sure the guests know they are expected to pay their own bill you can put: Guests will be responsible for the cost of their luncheon.
A luncheon is just a fancy lunch, usually with guests.I can give you several sentences.The Ladies' Association held a luncheon at the church.I am going to the group luncheon because they are having a speaker talk about his travels to Egypt.Let's have a luncheon and charge a fee so we can raise money for the band!
Later, a maid went down to the landing, stowed away luncheon, water bottles, and costume word game in the canoe.
DINNER!Another answer:Lunch or luncheon.
Luncheon is a noun.
"Teacher's Luncheon" means that only one teacher could attend. "Teachers' Luncheon" denotes the plural form, i.e. a luncheon for many teachers.