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Synonyms

fathom

American  
[fath-uhm] / ˈfæð əm /

noun

plural

fathoms,

plural

fathom
  1. a unit of length equal to six feet (1.8 meters): used chiefly in nautical measurements. fath


verb (used with object)

  1. to measure the depth of by means of a sounding line; sound.

  2. to penetrate to the truth of; comprehend; understand.

    to fathom someone's motives.

fathom British  
/ ˈfæðəm /

noun

  1. a unit of length equal to six feet (1.829 metres), used to measure depths of water

  2. mining a unit of volume usually equal to six cubic feet, used in measuring ore bodies

  3. forestry a unit of volume equal to six cubic feet, used for measuring timber

"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

verb

  1. to measure the depth of, esp with a sounding line; sound

  2. to penetrate (a mystery, problem, etc); discover the meaning of

"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

Other Word Forms

  • fathomable adjective
  • fathomer noun
  • unfathomable adjective
  • unfathomed adjective

Etymology

Origin of fathom

First recorded before 900; Middle English fathme, Old English fæthm “span of outstretched arms”; cognate with German Faden “six-foot measure,” Old Norse fathmr; akin to Latin patēre “to stand open” ( patent )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The link between comic books and Jewish creators is not difficult to fathom, and it has been covered extensively in nonfiction as well as in Michael Chabon’s 2000 novel “The Amazing Adventures of Kavalier & Clay.”

From The Wall Street Journal

“This was a special year, it’s hard to fathom that it’s over.”

From Los Angeles Times

She couldn’t fathom why Utah hadn’t put up more of a fight to keep Sundance in town as it seemed to her that it had been a fiscal boon.

From Los Angeles Times

I want to know why he's so interested in death, and he looks almost as if he can't fathom the question.

From BBC

“When you lose that much, it’s sometimes hard to fathom.”

From Los Angeles Times