1. To make broad.

2. To grow broad.

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

• brokien,
• brayden,
• broden,
• brasen,
• broen,
• brodern,
• graden,
• brocken,
• broaded,
• brozen,
• brnadon,
• browken,
• braoden,
• brenden,
• broarden,
• broadan,
• briader,
• browden,
• broadand,
• bradon

• broadening,
• broader,
• broody hen,
• broad,
• broodmare,
• broadnax,
• broadens,
• Britteny,
• Braden,
• breeden,
• bradeen,
• broadnosed,
• brooding,
• Broadened,
• bratten,
• britten,
• braiding,
• broadness,
• bryden,
• braaten,
• brayton,
• bratton,
• broten,
• brood hen.

The adverb form of the word "broaden" is "broadly".

The adjective form of "broaden" is "broadened".