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Deep thought. A cliché that means deep thought. The action of people thinking underwater. also: Main Entry: 1fath·om Pronunciation: 'fa-th&m Function: noun Etymology: Middle English fadme, from Old English fæthm outstretched arms, length of the outstretched arms; akin to Old Norse fathmr fathom, Latin patEre to be open, pandere to spread out, Greek petannynai Date: before 12th century 1 : a unit of length equal to six feet (1.83 meters) used especially for measuring the depth of water 2 : COMPREHENSION
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