Fathom
A unit of depth equal to 6 feet (1.83 m). Older charts give soundings in fathoms; modern US charts use feet or metres.
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A unit of depth equal to 6 feet (1.83 m). Older charts give soundings in fathoms; modern US charts use feet or metres.
See Fathom in a real exam question.
Real exam questions. No signup, no card.