n. 25B6; noun
the hurricane caused havoc : DEVASTATION, destruction, damage, desolation, ruination, ruin; disaster, catastrophe.
hyperactive children create havoc : DISORDER, chaos, disruption, mayhem, bedlam, pandemonium, turmoil, tumult, uproar; commotion, furore; N. Amer. a three-ring circus; informal hullabaloo.