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bulk1

[buhlk]
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noun
  1. magnitude in three dimensions: a ship of great bulk.
  2. the greater part; main mass or body: The bulk of the debt was paid.
  3. goods or cargo not in packages or boxes, usually transported in large volume, as grain, coal, or petroleum.
  4. fiber(def 9).
  5. (of paper, cardboard, yarn, etc.) thickness, especially in relation to weight.
  6. the body of a living creature.
  7. bulk mail.
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adjective
  1. being or traded in bulk: bulk grain.
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verb (used without object)
  1. to increase in size; expand; swell.
  2. to be of or give the appearance of great weight, size, or importance: The problem bulks large in his mind.
  3. (of paper, cardboard, yarn, etc.) to be of or to acquire a specific thickness, especially in relation to weight.
  4. to gather, form, or mix into a cohesive or uniform mass.
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verb (used with object)
  1. to cause to swell, grow, or increase in weight or thickness.
  2. to gather, bring together, or mix.
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Verb Phrases
  1. bulk up, to increase the bulk of, especially by increasing the thickness of: Adding four chapters will bulk up the book.
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Idioms
  1. in bulk,
    1. unpackaged: Fresh orange juice is shipped from Florida in bulk.
    2. in large quantities: Those who buy in bulk receive a discount.
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Origin of bulk1

1400–50; late Middle English bolke heap, cargo, hold < Old Norse bulki cargo, ship's hold

Synonym study

1. See size1.

Pronunciation note

Bulk and bulge most often are pronounced with the vowel [uh] /ʌ/ of buck. In South Midland and Southern U.S. the [oo] /ʊ/ of book and bull commonly occurs among all speakers. Standard British speech has only [uh] /ʌ/. Both types exist in British regional speech, and both were brought to the colonies, where each came to predominate in a different area and was carried west by migration.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

bolsterwidenbroadenswellenlargeincreasespreaddevelopopengrowthickenpyramidlengthenunfurlprotractdistendmagnifydilatestretchdetail

British Dictionary definitions for bulk up

bulk up

verb
  1. (adverb) to increase or cause to increase in size or importance
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bulk

noun
  1. volume, size, or magnitude, esp when great
  2. the main partthe bulk of the work is repetitious
  3. a large body, esp of a personhe eased his bulk out of the chair
  4. the part of food which passes unabsorbed through the digestive systemhe eased his bulk out of the chair
  5. unpackaged cargo or goods
  6. a ship's cargo or hold
  7. printing
    1. the thickness of a number of sheets of paper or cardboard
    2. the thickness of a book excluding its covers
  8. (plural) copies of newspapers sold in bulk at a discounted price to hotels, airlines, etc which issue them free to their customers
  9. in bulk
    1. in large quantities
    2. (of a cargo, etc) unpackaged
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verb
  1. to cohere or cause to cohere in a mass
  2. to place, hold, or transport (several cargoes of goods) in bulk
  3. bulk large to be or seem important or prominentthe problem bulked large in his mind
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Word Origin

C15: from Old Norse bulki cargo

usage

The use of a plural noun after bulk was formerly considered incorrect, but is now acceptable
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for bulk up

bulk

n.

mid-15c., "a heap," earlier "ship's cargo" (mid-14c.), from a Scandinavian source akin to Old Norse bulki "a heap; ship's cargo," thus "goods loaded loose" (perhaps literally "rolled-up load"), from Proto-Germanic *bul-, from PIE root *bhel- (2) "to blow, inflate, swell" (see bole).

Meaning extended by confusion with obsolete bouk "belly" (from Old English buc "body, belly," from Proto-Germanic *bukaz; see bucket), which led to sense of "size," first attested mid-15c.

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bulk

v.

"swell, become more massive," 1550s (usually with up), from bulk (n.). Related: Bulked; bulking.

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Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with bulk up

bulk

see in bulk.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.