- n a linear unit of measurement (equal to 6 feet) for water depth
- n (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore
- v come to understand
- v measure the depth of (a body of water) with a sounding line
- The gap between the brevity of King's life and its consequence is easy to state but hard to fathom.
- Instead it was called Fathom, then renamed the equally limp Surface.
- The reason was not hard to fathom.