| 1. | the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. |
| 2. | mechanical vibrations transmitted through an elastic medium, traveling in air at a speed of approximately 1087 ft. (331 m) per second at sea level. |
| 3. | the particular auditory effect produced by a given cause: the sound of music. |
| 4. | any auditory effect; any audible vibrational disturbance: all kinds of sounds. |
| 5. | a noise, vocal utterance, musical tone, or the like: the sounds from the next room. |
| 6. | a distinctive, characteristic, or recognizable musical style, as from a particular performer, orchestra, or type of arrangement: the big-band sound. |
| 7. | Phonetics.
|
| 8. | the auditory effect of sound waves as transmitted or recorded by a particular system of sound reproduction: the sound of a stereophonic recording. |
| 9. | the quality of an event, letter, etc., as it affects a person: This report has a bad sound. |
| 10. | the distance within which the noise of something may be heard. |
| 11. | mere noise, without meaning: all sound and fury. |
| 12. | Archaic. a report or rumor; news; tidings. |
| 13. | to make or emit a sound. |
| 14. | to give forth a sound as a call or summons: The bugle sounded as the troops advanced. |
| 15. | to be heard, as a sound. |
| 16. | to convey a certain impression when heard or read: to sound strange. |
| 17. | to give a specific sound: to sound loud. |
| 18. | to give the appearance of being; seem: The report sounds true. |
| 19. | Law. to have as its basis or foundation (usually fol. by in): His action sounds in contract. |
| 20. | to cause to make or emit a sound: to sound a bell. |
| 21. | to give forth (a sound): The oboe sounded an A. |
| 22. | to announce, order, or direct by or as by a sound: The bugle sounded retreat. His speech sounded a warning to aggressor nations. |
| 23. | to utter audibly, pronounce, or express: to sound each letter. |
| 24. | to examine by percussion or auscultation: to sound a patient's chest. |
| 25. | sound off, Informal.
|

| 1. | to measure or try the depth of (water, a deep hole, etc.) by letting down a lead or plummet at the end of a line, or by some equivalent means. |
| 2. | to measure (depth) in such a manner, as at sea. |
| 3. | to examine or test (the bottom, as of the sea or a deep hole) with a lead that brings up adhering bits of matter. |
| 4. | to examine or investigate; seek to fathom or ascertain: to sound a person's views. |
| 5. | to seek to elicit the views or sentiments of (a person) by indirect inquiries, suggestive allusions, etc. (often fol. by out): Why not sound him out about working for us? |
| 6. | Surgery. to examine, as the urinary bladder, with a sound. |
| 7. | to use the lead and line or some other device for measuring depth, as at sea. |
| 8. | to go down or touch bottom, as a lead. |
| 9. | to plunge downward or dive, as a whale. |
| 10. | to make investigation; seek information, esp. by indirect inquiries. |
| 11. | Surgery. a long, slender instrument for sounding or exploring body cavities or canals. |

"The experts of Victor ... will ... arrange for the synchronized orchestration and sound effects for this picture, in which airplane battles will have an important part." ["Exhibitor's Herald & Moving Picture World," April 28, 1928]
sound 3
n.
An instrument used to examine or explore body cavities, as for foreign bodies or other abnormalities, or to dilate strictures in them. v. sound·ed, sound·ing, sounds
To probe a body cavity with a sound.