fath·om [ˈfaðəm]
1. a measure of depth of water (6 feet or 1.8 metres)
2. to penetrate to the meaning or nature of; comprehend.
3. to determine the depth of; sound.
1. binary digits.
2. number 2 in binary numeral system.
10 fathoms
1. good sailing.
2. good mind.
3. good times.
«…Ten fathoms deep on the road to hell!
Yo-ho-ho and a bottle of rum!»