字典里说英语单词dinner是正餐的意思，可以是午餐，也可以说晚餐。晚餐就不研究了，可是午餐。。是

"Dinner" usually refers to the most significant and important meal of the day, which can be the noon or the eveningmeal. However, the term "dinner" can have many different meanings depending on the culture; it may mean a meal of any size eaten at any time of day.
Historically, it referred to the first meal of the day, eaten around noon, and is still sometimes used for a noontime meal, particularly if it is a large or main meal. The meaning as the evening meal, generally the largest of the day, is becoming standard in many parts of the English-speaking world.追问

对不起，我看不懂。。

午餐是lunch，晚餐是dinner

词典没有胡扯。追答

dinner 是正餐，英美国人喜欢晚上大吃顿，所以又可以表达晚餐。但是对于我们中国人还有一些国家的人和我们一样，中午大吃一顿，因此午餐也可以叫dinner。

总之，大吃一顿的哪餐即称之为：dinner。

英语中晚餐另外有一词：supper。

认真答题，确保正确，欢迎追问，放心采纳。

追问

也就是说，有些国家的外国人拿dinner来表达午餐也行?它表达 午餐 时用的多不多？

追答

只要是午餐作正餐，且丰盛，均可用dinner。

此外与说话人习惯还有一定关系。

谢谢好评

本回答被提问者采纳

字典胡说吧！dinner是正餐、晚餐 ，但不是午餐。