What is a table ??

That's seems like a stupide question but it's really a large topic even if it's just a thing, so let's began :d. First there table is made of wood or metal or glass or marble or plastic like the toilet, and there's a different shapes of tables, there's tables like cercls, squares, dauphines, lions... All of this just for money maybae or maybe for creativity, i don't know this really a big topic..