A tablecloth is a cloth that you put on a table to make it look nice and to protect it.
Tablecloths are often used for special occasions or to make a table look pretty.
Examples:
The tablecloth is white and has flowers on it.
We use a red tablecloth for our table.
The tablecloth is on the table.
The tablecloth is so long, it touches the floor!
I saw a tablecloth that was as big as a house!
She made the tablecloth herself and it's very pretty.