what is the diff between lunch and lunchoen
have a lunch / lunchoen when arrive in france
Use 'lunch'. 'Luncheon' is very dated, and is used by some people to evoke an age of domestic staff and country house parties. Bertie Wooster's Aunt Agatha would have had (or probably 'taken') luncheon. The word persists in the fossil 'pork luncheon meat' (AKA spam).