The word Turn in a restaurant is more than a verb, it is noun. In restaurant speak, a Turn is the liminal space between one party completing their meal and leaving the table and the next party arriving to take residence at the same table for their meal.
When service is running smoothly, turns are seamless. A party that arrived at 6:00pm is sipping the dregs of their coffee cups and signing the credit card slip by 7:45pm. They clear off moments later under a chorus of warm goodbye and thank you‘s from the assembled dining room staff. The table is clear of everything other than a few stray demitasse spoons and water glasses, so a single busser can carry all the dishes away in one trip to the scullery, and the table is re-set before an 8:00pm reservation arrives to take residency for another two hours.
Turns are necessary to most restaurant’s survival. In order to keep the lights on and the water running, establishments must be able to turn tables. On popular nights (Valentine’s Day, New Years Eve, Saturday night), the turns enable more guests to enjoy the space on a holiday or special occasion. Attempting to accommodate turns is why, when you call at noon on Saturday the only tables available for dinner that night are 5:00 and 9:00. The restaurant may be empty at 5:00, but the staff knows that all of their tables are booked for 6:30pm, so they may not be able to seat those tables at 5:15, or may only be able to seat them with the condition that they party clears the table by 7:00.