backboard
1. [ noun ] (basketball,games) a raised vertical board with basket attached; used to play basketball
Synonyms: basketball_backboard
Examples:

"he banked the shot off the backboard"

Related terms: game_equipment basketball
2. [ noun ] a board used to support the back of someone or something
Related terms: support
Similar spelling:   baseboard
  buckboard
  baseborn
  back_brace