Japanese edit

Kanji in this term
けつ
Grade: 4
ばん
Grade: 2
on’yomi
Alternative spelling
缺番 (kyūjitai)

Noun edit

(けつ)(ばん) (ketsuban

  1. missing number in a series
    永久(えいきゅう)欠番(けつばん)
    eikyū ketsuban
    retired number (baseball, etc.)
    (literally, “forever missing number”)