Definition of “dinner” - Learner’s Dictionary

dinner

noun [ C, U ] us uk /ˈdɪnər/
Extra Examples
We are having dinner at 7 o'clock.Would you like to join us for dinner?She ate very little at dinner.Paul promised me that he'd cook dinner tonight.Is dinner ready?

A1 the main meal of the day that people usually eat in the evening:

What's for dinner tonight?

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