fathom meaning and definition

FATHOM noun

Definition of fathom (noun)

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

FATHOM verb

Definition of fathom (verb)

1. come to understand
   • synonyms: bottom, penetrate
2. measure the depth of (a body of water) with a sounding line
   • synonyms: sound