1. A board for the back, either to lean against in the after part of a boat, or to correct an ill habit of stooping in young persons.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• balckboard,
• baesboard,
• lackboard,
• blakboard,
• blacboard,
• bardboard,
• backuard,
• backbond,
• blackboarda,
• blackboad,
• backard,
• blackbord,
• backyeard,
• backborn,
• backguard,
• backboned,
• blckboard,
• bashboard,
• basboard,
• blaclboard

• baseborn,
• back brace,
• buckboard,
• baseboard.

The adjective form of the word "backboard" is "backboarded".

The plural of the "backboard" can be the "backboards".

The singular of the "backboard" can be the "backboard".