adjective

1. making or giving forth sound
2. resonant; sonorous
3. high-sounding; bombastic

noun

1. 1. the act of measuring the depth or examining the bottom of a body of water, etc. with or as with a weighted line
   2. depth so measured
   3. a place, usually less than 100 fathoms (c. 180 m) in depth, where a sounding line will touch bottom
2. 1. an examination of the atmosphere at or to a given height, as with a radiosonde
   2. a probe of space, as with a rocket
3. measurements learned or data acquired by sounding
4. an exploratory sampling, as of public opinion