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ENGLISH · A WORD WITH POSSIBILITIES

onslaught.

A fierce attack.

9 characters2 syllables approx.English language

Meaning & usage

noun/ˈɒn.slɔːt/Received-Pronunciation/ˈɔnsloːt/Australia, British, Southern, Standard/ˈɑn.slɔt/Northern-US/ˈɔn.slɔt/
  1. A fierce attack.

  2. A large number of people or things resembling an attack.

    broadly
    They opened the doors and prepared for the onslaught of holiday shoppers.
Where this word comes from

From on- + slaught. Formed after Middle Dutch aenslag, aenslach, equivalent to aen + slag, although slaught corresponds to Middle Dutch slacht; slag is cognate with the English weaving term sley. Compare Dutch aanslag and German Anschlag.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.