• bullhook,
• villhook,
• nillhook,
• hillhook,
• gillhook,
• bjllhook,
• bkllhook,
• bollhook,
• b9llhook,
• b8llhook,
• biklhook,
• bilhook,
• bill hook,
• billycok,
• billhooke,
• billhookes,
• billhooks,
• bill hooks,
• Billyeck,
• Ailehoof

• bilious,
• bilski,
• bielski,
• billick,
• bialek,
• biloxi,
• biology.

The adjective form of the word "billhook" is "billhooked".

The plural of the "billhook" can be the "billhooks".

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