Dinner is a main meal of the day, often eaten in the evening, though in some cultures it can be at midday. It is usually larger or more formal than other meals.
From Old French "disner" meaning "to dine" or "have the first meal of the day," originally from a verb meaning "to break a fast." Over time in English, "dinner" shifted from meaning the day’s main meal (at midday) to often meaning the evening meal.
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