noun
discard; discarded card
In card games, a card that has been thrown away or is in the discard pile.
捨て札から必要なカードを拾うことはできない。
You cannot pick up a needed card from the discard pile.
彼は手札を一枚捨て札にした。
He discarded one card from his hand.
noun
Edo-period bulletin board for condemned criminals
Archaic; a public notice board displaying details of criminals sentenced to death during the Edo period.
江戸時代、捨て札には罪人の名や罪状が記されていた。
In the Edo period, the 捨て札 displayed the name and crime of the condemned.
Compound of 捨て (stem of 捨てる 'to discard') + 札 ('card, tag'). The archaic sense likely extended from the idea of a 'discarded tag' used for public notices.