1. The clack of a mill; a clack-valve.

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

• cliker,
• clicker,
• clacke,
• vlacker,
• ckacker,
• coacker,
• clzcker,
• clscker,
• clwcker,
• clqcker,
• claxker,
• clafker,
• cladker,
• clackerr,
• clackere,
• Clikker,
• clackers,
• clickerz,
• Clackered,
• Clickor

• cluck,
• cracker,
• slacker,
• locker,
• clock,
• blacker,
• click,
• Clicker.

The plural of the "Clacker" can be the "clackers".

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