• Size, specifically, volume.
  • Any huge body or structure.
  • The major part of something.
  • Dietary fibre.
  • Unpackaged goods when transported in large volumes, e.g. coal, ore or grain.
  • a cargo or any items moved or communicated in the manner of cargo.
  • Excess body mass, especially muscle.
  • A period where one tries to gain muscle.
  • A hypothetical higher-dimensional space within which our own four-dimensional universe may exist.
  • The body.


  • being large in size, mass or volume (of goods, etc.)
  • total


  • To appear or seem to be, as to bulk or extent.
  • To grow in size; to swell or expand.
  • To gain body mass by means of diet, exercise, etc.
  • To put or hold in bulk.
  • To add bulk to, to bulk out.


  • From Middle English bulk, bolke, borrowed from Old Norse búlki, from Proto-Germanic *bulkô, from Proto-Indo-European *bʰelǵ-. Compare Icelandic búlkast, Swedish dialectal bulk, Danish bulk.
  • Conflated with Middle English bouk.

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