noun
(chiefly nautical, historical, US) A man's armspan, generally reckoned to be six feet (about 1.8 metres). Later used to measure the depth of water, but now generally replaced by the metre outside American usage.
(nautical, US) A measure of distance to shore: the nearest point to shore at which the water depth is the value quoted.
An unspecified depth.
Depth of insight; mental reach or scope.
The act of stretching out one's arms away from the sides of the torso so that they make a straight line perpendicular to the body.
Someone or something that is embraced.
Control, grasp.
verb
To measure the depth of (water); to take a sounding of; to sound.
To encircle (someone or something) with outstretched arms; specifically, to measure the circumference or (rare) length of something.
Often followed by out: to deeply understand (someone or something); to get to the bottom of.
To embrace (someone or something).
To measure a depth; to sound.
To conduct an examination or inquiry; to investigate.