also: ナフキン
table napkin; serviette
Refers to a cloth or paper napkin used at the dining table.
Please put napkins on the table.
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.
You can buy sanitary napkins at the pharmacy.
I wiped up the spilled juice with a napkin.
It's about time to change the sanitary napkin.
I put the napkin on my lap before the meal.
My period started, so I put on a sanitary napkin.