Definition of amass in US English:



[with object]
  • 1Gather together or accumulate (a large amount or number of valuable material or things) over a period of time.

    ‘starting from nothing he had amassed a huge fortune’
    • ‘They amassed a number of chances to put victory beyond doubt before half-time.’
    • ‘He found the most beautiful ring, and amassed a huge amount of knowledge on the subject.’
    • ‘They looked upon electoral victory as licence to abuse power, help cronies and amass huge fortunes.’
    • ‘Aristotle was an industrious collector who amassed a prodigious quantity of information on a vast variety of topics.’
    • ‘His firm has amassed its billions mainly from large institutional clients and pension funds.’
    • ‘The £11 cash value of a single ticket was then removed, and the money was amassed over a long period of time.’
    • ‘The police have amassed a huge amount of evidence which they will now go through.’
    • ‘Yet, it has still managed to amass a huge amount of cash and a reputation as an aggressive and relentless competitor.’
    • ‘By the time the opposition amassed its figures of discrepancy, most of the groups had filed their reports and left.’
    • ‘Little is known about how he amassed such a huge fortune before his death in 1852 aged 72.’
    • ‘Peirce spent five years studying the case and amassed an astonishing quantity of information.’
    • ‘He amassed a fortune through dubious means, yet cracked down on corruption’
    • ‘She was herself a stock broker for a number of years, and through her company amassed a fortune.’
    • ‘Since 1997 he has amassed a vast store of knowledge as a maverick manufacturer of beautifully crafted racing motorcycles.’
    • ‘In more trials with indigenous plants, his immediate challenge was to amass sufficient quantities of seed so that large areas might be replanted.’
    • ‘Traditionally only organizations had the resources to amass large amounts of consumer information.’
    • ‘I am pleased to report that the chest of drawers is indeed still white on the top and that I seem to have amassed a hefty quantity of necklaces.’
    • ‘You would be right in saying that just as he has numerous people who seem to hang on his every word, he has also amassed a significant number of critics.’
    • ‘But he failed to answer questions that the Treasury had amassed four billion pounds extra in tax through the increases.’
    • ‘But eventually you're out there playing shows all the time, and you amass enough material, and you think it's time to sink or swim and take it seriously.’
    gather, collect, assemble
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    1. 1.1archaic no object (of people) gather together in a crowd or group.
      ‘the soldiers were amassing from all parts of Spain’
      • ‘Many gasps were heard from a small crowd that had amassed above him, as he brought the sword to his side and faced his enemy.’
      • ‘A group, which even has its own website, is amassing in a region called Sulawesi.’
      • ‘The 23-year-old Swiss rider stormed clear with one kilometre to go as the sprinters were amassing for a bunch finish.’
      • ‘The 1,600 troops taking part began amassing around St James's Palace in the early hours of the morning and the procession began to move at 6am as the sun came up.’
      gather, collect, congregate, assemble, come together, get together, converge, convene, rally, rendezvous, muster, meet, mass, crowd, throng, cluster, herd, group, bunch, swarm, huddle, mill
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Late 15th century: from French amasser or medieval Latin amassare, based on Latin massa ‘lump’ (see mass).