Definition of onslaught in English:


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  • 1A fierce or destructive attack.

    ‘a series of onslaughts on the citadel’
    • ‘From time immemorial there have been friendly migrations and unfriendly onslaughts on the Kerala society, mostly through the sea.’
    • ‘Sabotage could range from pinprick attacks on individual weapons or machines to full-scale onslaughts on formed bodies of troops.’
    • ‘For 15 minutes they made repeated onslaughts on the Ardclough defence and looked particularly dangerous on the right wing where Timmy Comerford and David Slattery were on constant prowl.’
    • ‘The trust lets you stand as a bulwark against any onslaughts on the papers' editorial freedom.’
    • ‘But the bottom line is that the foundations of secularism and equality before the law that Nehru laid have withstood the worst of onslaughts on them.’
    • ‘The onslaughts on the World Trade Center and the Pentagon are being likened to Pearl Harbor, and the comparison is just.’
    • ‘The U.S. onslaughts on the cities were part of its retaliatory and preemptive strikes on the regime.’
    • ‘Again the Elephants fought back and following a series of onslaughts on the Bulldogs' tryline the referee awarded a penalty try after Peach was obstructed.’
    • ‘Speculative onslaughts on the pound were resisted only at the expense of deflationary domestic policies.’
    • ‘Cultural and civil liberty activists ought to unite and fight to resist these onslaughts on basic fundamental freedom, he said.’
    • ‘Chapter 5 turns to the medieval world, which brought new onslaughts on the forest.’
    • ‘The blue bill shows how the authorities used concessions on trivial matters to conceal onslaughts on key issues.’
    • ‘As a result of fierce Hungarian onslaughts from the north, Bulgaria lost important territories beyond the Danube, including the rich Transylvania.’
    • ‘The scores in the match came tumbling from the often-repeated sheer attacking onslaughts so frequently launched at blistering pace by both teams.’
    • ‘Against the wine Villa upped their game but had to withstand some fierce Mill onslaughts before capturing the points.’
    • ‘England faced a fierce onslaught from South Africa for much of the match and Woodward was impressed with what he saw.’
    • ‘Capture the flag; the blues struggle to hold back the onslaught of the attacking yellows.’
    • ‘Shell crumbled before the onslaught, and the Brent Spar was taken off to a Norwegian fjord.’
    • ‘The Russian army collapsed under this onslaught and the attack was initially incredibly successful.’
    • ‘When the memories came flooding back she only just managed to hold back an onslaught of tears.’
    assault, attack, offensive, aggression, advance, charge, onrush, rush, storming, sortie, sally, raid, descent, incursion, invasion, foray, push, thrust, drive, blitz, bombardment, barrage, salvo, storm, volley, shower, torrent, broadside
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    1. 1.1A large quantity of people or things that is difficult to cope with.
      ‘an onslaught of electronic mail’
      • ‘The reactions of Nature as a result of its exposure to the onslaughts of human societies have become more important in determining the fate of the human species than any harm it can inflict on itself.’
      • ‘Steady onslaughts of slick visuals and hyped-up soundtracks are routine: another day, another few hundred commercials.’
      • ‘Yet he also believes that the relentless media onslaught of ‘perfect’ male images has contributed.’
      • ‘Another area of concern for IT professionals has been the growing onslaught of spam.’
      • ‘In fact, the proliferation of viruses and the onslaught of spam have left companies and consumers staggering.’
      abundance, mass, superabundance, plethora, profusion
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/ˈänˌslôt/ /ˈɑnˌslɔt/ /ˈônˌslôt/ /ˈɔnˌslɔt/


Early 17th century (also in the form anslaight): from Middle Dutch aenslag, from aen ‘on’ + slag ‘blow’. The change in the ending was due to association with (now obsolete) slaught ‘slaughter’.