FATHOM
- probe.
- to discover the depth of [v -ED, -ING, -S]
- Even those close to him cant always fathom why he repeatedly risks his life to climb the worlds tallest mountains.
- unit of nautical measure equal to 6 feet (1.8 m)
- to understand
- to understand (to grasp mentally) [v FATHOMED, FATHOMING, FATHOMS]
- to make a searching exploratory investigation probe.