bright card; light card; 20-point card
In hanafuda, one of the five high-value cards (January, March, August, November, December) worth 20 points. Also called 光 (ひかり) or 光物 (ひかりもの).
Collecting bright cards yields a high score.
Compound of 光 (ひかり, 'light') and 札 (ふだ, 'card'), referring to the bright/light cards in hanafuda.