(hand) towel — a thin traditional Japanese towel made of cotton, used for wiping sweat, as a headband, decoration, etc.
暑かったので手ぬぐいで汗を拭いた。
It was hot, so I wiped my sweat with a tenugui.
祭りでは手ぬぐいを頭に巻く人が多い。
At festivals, many people wrap a tenugui around their heads.
柄のきれいな手ぬぐいを壁に飾った。
I hung a tenugui with a beautiful pattern on the wall as decoration.