Longman Dictionary of Contemporary English - dinner

~ n 1 the main meal of the day, eaten in the middle of the day or the evening  (Would you like to come over for dinner on Friday? | We're having fish for dinner tonight. | Sunday/Christmas/Thanksgiving dinner etc (=a special meal eaten on Sunday, at Christmas, as Thanksgiving, etc) | school dinner (=a meal provided at school in the middle of the day)) 2 a formal occasion when an evening meal is eaten, often to celebrate something  (They're giving a dinner in honour of her retirement.) 3 had more ... than you've had hot dinners BrE spoken humorous used to say that someone has had a lot of experience of something and has done it many times  (She's nursed more babies than you've had hot dinners.)  (- see also TV dinner, be dressed up like the dog's dinner dog1 (9))