Fathom - definition, pronunciation, transcription

Amer.  |ˈfæðəm|  American pronunciation of the word fathom
Brit.  |ˈfað(ə)m|  British pronunciation of the word fathom


- a linear unit of measurement (equal to 6 feet) for water depth
- (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore


- come to understand (syn: bottom, penetrate)
- measure the depth of (a body of water) with a sounding line (syn: sound)


The water here is five fathoms deep.

...the pilot had to continually fathom the river, which drought conditions had lowered to unprecedented levels...

Trees are so thick that a man could not fathom them.

I still can't fathom out what she meant.

Mark couldn't fathom why she resented him so much.

Word forms

I/you/we/they: fathom
he/she/it: fathoms
present participle: fathoming
past tense: fathomed
past participle: fathomed
singular: fathom
plural: fathoms
See also:  WebsterWiktionaryLongman