Definition:
A dining-room is a noun that refers to a room in a house or building where people eat meals together. It is typically furnished with a table and chairs.
In more advanced contexts, you might encounter terms like "formal dining-room," which indicates a dining space used for special occasions, or "open-plan dining-room," which refers to a dining area that is part of a larger space, usually combined with the living room.
While "dining-room" specifically refers to a room for eating, the word "dine" can also be used more generally to describe the action of eating, particularly in a formal context.
In summary, a dining-room is a specific area in a house where meals are taken, often designed for comfort and social interaction.