1. One who builds walls.

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

• wamer,
• vallery,
• walllet,
• vcaller,
• welle,
• walue,
• waher,
• walll,
• realler,
• wellder,
• calller,
• wayer,
• waler,
• ccaller,
• wahser,
• wilber,
• daller,
• willer,
• aller,
• wallce

• Willer,
• Weller,
• wall rue,
• wailer.

The plural form of the word "waller" is "wallers".

The singular form of the word "waller" is "waller". It is already in its singular form.