1. One who knocks; a kind of hammer fastened to a door for knocking.

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

• knucke,
• knoked,
• knicker,
• knockes,
• knoocked,
• knicked,
• nockes,
• snoker,
• knockover,
• knowked,
• knuckel,
• knowcked,
• knuckes,
• kncked,
• knockin,
• knoce,
• knockle,
• knacked,
• knacker,
• knakker

• knacker,
• knock,
• knockwurst,
• Knocked,
• knackered,
• knickers.

The adjective form of the word "knocker" is "knocking".

The plural of the "knocker" can be the "knockers".

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