fathom
Nouns
- (n) a linear unit of measurement (equal to 6 feet) for water depth fthm,
- (n) (mining) a unit of volume (equal to 6 cubic feet) used in measuring bodies of ore fthm,
Verbs
- (v) come to understand penetrate, bottom,
- (v) measure the depth of (a body of water) with a sounding line sound,