• havock,
• havek,
• havk,
• havoc,
• Havoak,
• hevok,
• hovok,
• havaok,
• havoq

• havoc,
• have,
• havi's,
• hove's,
• hovey,
• havy,
• have's,
• hawve,
• haves,
• hate,
• hiv's,
• ahve,
• hiv,
• havoc's,
• hivy,
• Hove,
• heave,
• heavy,
• HAVI.

The adjective form of the word "havok" is "havocous". However, it is worth noting that "havocous" is not as commonly used as the noun form "havoc".

The plural form of the word "havok" is "havocs".

The singular form of the word "havok" is "havoc"