1. Come to understand
   - penetrate, bottom 
2. Measure the depth of (a body of water) with a sounding line
   - sound

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

Derived forms: fathomed, fathoms, fathoming

Type of: capacity measure, capacity unit, cubage unit, cubature unit, cubic content unit, cubic measure, displacement unit, linear measure, linear unit, measure, quantify, understand, volume unit

Encyclopedia: Fathom Fathom, Hartford, CT

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