ENGLISH
REFERENCE

havoc

n. · v.
US //ˈhævək// UK //hˈævək// hav·oc
  1. 1 chaos and damage (n.)
    B2 Upper Intermediate

    a situation where there is a lot of damage, confusion, or lack of order.

    widespread destruction, devastation, or chaotic disorder. Usually uncountable.

    Example

    The heavy snowstorm caused havoc on the motorways this morning.

    Example

    The sudden change in interest rates played havoc with the company's long-term financial planning.

    Usage

    Commonly used in the phrase 'wreak havoc'.

  2. 2 to cause damage (v.)
    C2 Proficiency Literary

    to cause a lot of trouble or damage to something.

    to bring about devastation or chaos. Transitive use is less common than the noun form.

    Example

    The invading army continued to havoc the countryside for weeks.

    Example

    The storm proceeded to havoc the coastal villages, leaving a trail of ruined homes in its wake.

    Usage

    Often appears in older texts or poetic descriptions of war.

Origin

From Middle English havok, havyk, from Old French havok in the phrase crier havok (“cry havoc”) a signal to soldiers to seize plunder, from Old French crier (“cry out, shout”) + havot (“pillaging, looting”), of obscure origin. Probably from a derivative of Old French haf, hef (“hook”), from Frankish haf, habbjā, happjā (“pruning-hook, scythe”), derived from Proto-Germanic *habjaną (“to take up, lift”), related to Old French havee (“handful”), Old French havet (“pruning-hook”), Old High German habba, heppa (“pruning-hook, scythe”), modern German Hippe (“billhook”). If so, then also related to English heave and doublet of hatchet.

Idioms1 entry

© 2026 English Reference