noun
A matching tag or token used to identify and claim items, such as luggage at a cloakroom or a baggage claim area.
手荷物預かり所で合札を受け取った。
I received a claim check at the baggage counter.
合札をなくすと荷物が受け取れない。
If you lose the claim tag, you cannot pick up your luggage.
noun
Used in contexts where matching halves of a tally stick or a record of accounts is kept; somewhat old-fashioned outside of traditional settings.
昔の商家では合札で帳簿を合わせた。
In old merchant houses, they reconciled accounts using tally sticks.
Compound of 合い (ai, 'matching') + 札 (fuda, 'tag'). The kanji spelling 合札 directly reflects the meaning of a matching tag.