A small piece of table linen that is used to wipe the mouth and to cover the lap in order to protect clothing(noun)
WordNet. Princeton University. 2010.
Use "table napkin" in a sentence
"Her freckles glowed, mini-beacons of mutinous embarrassment, as she shook out the paper table napkin and draped it across her lap."
"He was wearing his best blue suit, which made him look like a camouflaged roc’s egg, but carried a table napkin over his arm, no doubt as a badge of office."