Widespread devastation and destruction. / Mayhem.

To pillage. / To cause havoc.

A cry in war as the signal for indiscriminate slaughter.

Third-person singular simple present indicative form of havoc

simple past tense and past participle of havoc

present participle of havoc

(obsolete) To shout out 'Havoc!'; that is, to give an army the order to plunder.

To cause damage, disruption, or destruction.

Misspelling of wreak havoc.

Third-person singular simple present indicative form of cry havoc