~ 1
■ noun
1》 the action of ~ the depth of water.
↘a measurement taken by ~.
↘the determination of any physical property at a depth in the sea or at a height in the atmosphere.
2》 ( ~s ) information or evidence ascertained before taking action.
3》 ( ~s ) archaic coastal waters shallow enough for the seabed to be reached with a ~ line.
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~ 2
■ adjective archaic giving forth sound.
↘having an imposing sound but little substance.