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English definition of “fathom”

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fathom

noun [C]  /ˈfæð·əm/ us  

fathom noun [C] (MEASUREMENT)

a unit of measurement of the depth of water equal to 6 feet or 1.8 meters

fathom

verb [T]  /ˈfæð·əm/ us  

fathom verb [T] (UNDERSTAND)

to discover the meaning of something: I just couldn’t fathom what he was talking about.
(Definition of fathom from the Cambridge Academic Content Dictionary © Cambridge University Press)
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