ナプキン

noun

table napkin; serviette

Refers to a cloth or paper napkin used at the dining table.

• テーブルにナプキンを置おいてください。

  Please put napkins on the table.

noun

sanitary napkin; sanitary pad

Refers to a menstrual pad. Context usually makes the meaning clear, but 生理用ナプキン is more explicit.