What is the meaning of Dinner_table?

A table on which dinner (or other food) is served and eaten, particularly in a home.

A dining table.

The table at dinnertime conceived as a place; it often is the same table at which all meals are served, being at dinnertime the dinner table, at lunchtime the lunch table, and at breakfast time the breakfast table; it is usually either the kitchen table or the dining room table.

Source: wiktionary.org