Refers to the material or fabric, as in clothing or textiles.
このシャツはコットン100%です。
This shirt is 100% cotton.
cotton pads; cotton buds
Abbreviation; often refers to cotton pads or cotton buds included in hotel amenity kits or toiletry sets.
アメニティセットにコットンが入っていた。
There were cotton pads in the amenity set.
This shirt is made of cotton and feels cool.
She applied the toner to her face using a cotton pad.
This towel is made of 100% cotton.