1. The main beam of timber or iron in a floor.

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

• gerden,
• giude,
• giudes,
• farder,
• guarder,
• gardem,
• fider,
• girger,
• gurder,
• giddey,
• diorder,
• garde,
• gides,
• furder,
• gader,
• girped,
• irder,
• gided,
• pirde,
• garder

• giddier,
• guide,
• gorder,
• garter,
• glider,
• rider.

The adjective form of the word "girder" is "girdered".

The plural of the "girder" can be the "girders".

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