supper的同义词是dinner。dinner的意思是（中午或晚上吃的）正餐，主餐，宴会。dinner的例句：Have an apple to keep you going till dinner time（吃个苹果就能挨到吃晚饭了）。

dinner的例句：She has elevated the dinner party into an art form（她把宴会办得犹如一种艺术）；We had some friends to dinner last night（我们昨晚请了几位朋友来家里吃饭了）。