People who speak English, or people from England? Either way, many people pray before meals, but many don't. Sometimes they will say "Enjoy your meal," or "Yummy! Pot Roast!" or "Please pass the butter."
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If the person is a Jehovah's Witness, they give thanks before a meal and they can be of any nationality
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Sadly English people rarely say a grace before meals these days. Usually a grace is only said before formal meals, say at an important formal dinner or at a college or university meal. When I was in school in the 1960's it was the rule to say a grace before our midday meal. the one I vaguely remember was something like "Almighty and most merciful God bless this food to our use and our lives to Thy purpose. Amen"
Bon apetit
"bon appetit" is usually said before eating.
L'entree has several meanings The way in to a building The main course of a meal Acceptance in a restricted circle of people.
Same as English (Fa-meal-e-yer)
Well, you can say ask to join in or you can say to carry on with their meal and not stop at your expense.
You need to be more specific. Presumably you know that English speakers call this meal dinner or supper. You need to say which language or people you are referring to if you want to make it possible to answer your question.
Many people say a short prayer before eating their meals. These prayers are often called a blessing or grace. Some of them are poems that are recited, while others are spontaneous prayers of thanks.
English people just say light but in an English accent
We just say Bon Appetit or Enjoy your meal...
There is nothing actually incorrect about the phrase "lunch meal", and a rapid search will find a number of uses of the phrase. There is, however, no good reason for using it, as lunch is and has always been a meal. The phrase is redundant and not idiomatic. Use of this phrase might give the erroneous impression that the word "lunch" refers to a time of day, rather than a meal.
Japanese usually say "gochisosama" (which means "Thank you for the meal") after they eat.
Dig in (said before starting to eat a meal) = eet smakelijk