Definition of fathom:
- A measure of length, containing six feet; the space to which a man can extend his arms; - used chiefly in measuring cables, cordage, and the depth of navigable water by soundings.
- The measure by a sounding line; especially, to sound the depth of; to penetrate, measure, and comprehend; to get to the bottom of.
- The measure or extant of one's capacity; depth, as of intellect; profundity; reach; penetration.
- To encompass with the arms extended or encircling; to measure by throwing the arms about; to span.
bottom, take in, understand, get through, penetrate, deep, get across, go, sense, follow, know, bottomless, pervade, grasp, bottommost, voice, conceive, savvy, get the idea, diffuse, make out, work out, deduce, twig, take, click, perforate, have a feel for something, depth, dig, accept, permeate, deeply, fthm, fall into place, see the light, interpenetrate, get, dawn, knee-deep, come home, catch, see, comprehend, apprehend, riddle, vocalise, infiltrate, knowledge, come down, read, ken, vocalize, plumb, fall/fit into place, sound, imbue, fathomless, compass, make sense of something, sink in.
- discover (part of speech: verb)
- measure (part of speech: noun)
- interpret (part of speech: verb)
- "The Chase of the Golden Plate", Jacques Futrelle.
- "Salute to Adventurers", John Buchan.
- "The Genius", Margaret Horton Potter.