A Napkin

1. A serviette; a (usually rectangular) piece of cloth or paper used at the table for wiping the mouth and hands for cleanliness while eating.
2. (Britain, South Africa) A nappy (UK), a diaper (American).
3. A small scarf worn on the head by Christian women (chiefly Roman Catholic and Eastern Orthodox) when entering a church, as a token of modesty.
4. A sanitary napkin.