noun
white label; white tag
A generic white label or tag, used for identification or classification.
荷物に白札を付けて仕分けする。
Attach white tags to the packages and sort them.
noun
white card (in karuta); blank card
Specifically in karuta, a white card or blank card used in the game.
かるたの白札を取る。
Take the white card in karuta.
noun
honour awarded to samurai in Tosa
Historical term for an honour or privilege granted to samurai in the Tosa domain.
土佐藩では、功績のあった武士に白札が与えられた。
In the Tosa domain, white tags were awarded to samurai for their achievements.