noun
A loanword used for a discolored spot or mark, often on fabric, wood, or teeth. Common in contexts like cleaning, laundry, or dental care.
このシャツのステインはなかなか落ちない。
This stain on the shirt just won't come out.
コーヒーをこぼしてカーペットにステインがついた。
I spilled coffee and got a stain on the carpet.