Definition of “dinner” - English Dictionary

american-english dictionary

“dinner” in British English

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dinnernoun

uk /ˈdɪn.ər/ us /ˈdɪn.ɚ/

A1 [ C or U ] the main meal of the day, usually the meal you eat in the evening but sometimes, in Britain, the meal eaten in the middle of the day:

We were just having (our) dinner.
We had some friends over for dinner on Saturday.
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[ C usually singular ] a formal social occasion in the evening at which a meal is served:

They held a dinner to celebrate his retirement.
a charity/society dinner

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(Definition of “dinner” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“dinner” in American English

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dinnernoun [ C/U ]

us /ˈdɪn·ər/

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)