Compounds of 補欠

• 補欠
  (n,vs,adj-no) (1) filling a vacancy
  supplementation
  (2) substitute
  deputy
  alternate
  spare
  (P)
• 補欠選挙
  (n) special election
  by-election
• 補欠選手
  (n) spare player
  substitute
  sub
  benchwarmer
• 補欠分子族
  (n) prosthetic group