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fathom - definition and synonyms


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verb [transitive] fathom pronunciation in British English /ˈfæðəm/
Word Forms
present tense
present participlefathoming
past tensefathomed
past participlefathomed
present tense
I/you/we/theyfathom out
he/she/itfathoms out
present participlefathoming out
past tensefathomed out
past participlefathomed out

Related words

or fathom out British fathom pronunciation in British English

  1. to understand something complicated or mysterious
    For some reason she couldn’t fathom, he seemed angry.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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