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English definition of “dinner”

dinner

noun [C/U]  /ˈdɪn·ər/ us  
the main meal of the day, whether eaten in the evening or in the middle part of the day: [U] The restaurant is open for dinner from 5 p.m. to 10 p.m. [U] What’s for dinner (= What food are we having for our main meal)? [U] Conversation around the dinner table was always lively. A dinner is also a formal social occasion in the evening at which a meal is served: [C] There will be a black-tie dinner and fund-raiser for Jubilee Housing on April 18th at the Mayflower Hotel.
(Definition of dinner from the Cambridge Academic Content Dictionary © Cambridge University Press)
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