Main Difference
The main difference between Supper and Dinner is that the Supper is a name for the evening meal in some dialects of English and Dinner is a main meal of the day, or sometimes to the noon, early afternoon or evening meal.
Supper
Supper is the main evening meal (sometimes used to describe a light snack later in the evening).
Dinner
Dinner usually refers to the most significant meal of the day, which can be at noon or in the evening. However, the term “dinner” can have different meanings depending on culture, as it may mean a meal of any size eaten at any time of day. Historically, it referred to the first meal of the day eaten around noon, and is still sometimes used for a noon-time meal, particularly if it is a large or main meal. In many parts of the Western world, dinner is taken as the evening meal.
Supper (noun)
Food consumed before going to bed.
Supper (noun)
Any meal eaten in the evening; dinner eaten in the evening, rather than at noon.
Supper (noun)
A meal from a chip shop consisting of a deep-fried food with chips.
“a fish supper; a pizza supper”
Supper (noun)
A drinker, especially one who drinks slowly (i.e., one who sups).
Supper (verb)
To consume a snack before retiring.
Supper (verb)
To eat dinner (see above).
Dinner (noun)
A midday meal in a context in which the evening meal is called supper or tea.
Dinner (noun)
The main meal of the day, often eaten in the evening.
Dinner (noun)
An evening meal.
Dinner (noun)
A meal given to an animal.
“Give the dog its dinner.”
Dinner (noun)
A formal meal for many people eaten for a special occasion.
Dinner (noun)
The food provided or consumed at any such meal.
Dinner (verb)
To eat a dinner.
Dinner (verb)
To provide (someone) with a dinner.