Synonym: correct, firm, healthy, hearty, logical, pronounce, rational, reasonable, right, safe, sane, secure, sensible, solid, solvent, stable, strong, substantial, utter, voice, wholesome. Antonym: silence, unsound. Similar words: sound off, ultrasound, round and round, round, bound, wound, ground, around. Meaning: [saʊnd] 
n. 1. the particular auditory effect produced by a given cause 2. the subjective sensation of hearing something 3. mechanical vibrations transmitted by an elastic medium 4. the sudden occurrence of an audible event 5. the audible part of a transmitted signal 6. (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language 7. a narrow channel of the sea joining two larger bodies of water 8. a large ocean inlet or deep bay. v. 1. appear in a certain way 2. make a certain noise or sound 3. give off a certain sound or sounds 4. announce by means of a sound 5. utter with vibrating vocal chords 6. cause to sound 7. measure the depth of (a body of water) with a sounding line. adj. 1. financially secure and safe 2. exercising or showing good judgment 3. in good condition; free from defect or damage or decay 4. in excellent physical condition 5. logically valid 6. having legal efficacy or force 7. free from moral defect 8. (of sleep) deep and complete 9. thorough.
n. 1. the particular auditory effect produced by a given cause 2. the subjective sensation of hearing something 3. mechanical vibrations transmitted by an elastic medium 4. the sudden occurrence of an audible event 5. the audible part of a transmitted signal 6. (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language 7. a narrow channel of the sea joining two larger bodies of water 8. a large ocean inlet or deep bay. v. 1. appear in a certain way 2. make a certain noise or sound 3. give off a certain sound or sounds 4. announce by means of a sound 5. utter with vibrating vocal chords 6. cause to sound 7. measure the depth of (a body of water) with a sounding line. adj. 1. financially secure and safe 2. exercising or showing good judgment 3. in good condition; free from defect or damage or decay 4. in excellent physical condition 5. logically valid 6. having legal efficacy or force 7. free from moral defect 8. (of sleep) deep and complete 9. thorough. 
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31 The play had excellent sound and lighting effects.
32 I hope I don't sound unduly cynical.
33 That seems like fairly sound advice.
34 Alarmed at the first sound, we hit the dirt.
35 The dawn was filled with the sound of birds.
36 The programme is preserved in the BBC sound archives.
37 The birds scattered at the sound of the gun.
38 They were awakened by the sound of gunfire.
39 She is alert to every sound and movement.
40 The falling snow muffled the sound of our footsteps.
41 The radio engineers want to test for sound.
42 He made it all sound very nasty.
43 He didn't sound like his usual happy self.
44 Encyclopedias on CD-ROM include sound, illustrations and simple animations.
44 Wish you can benefit from sentencedict.com and make progress everyday!
45 Her idea is sound in principle.
46 I'm glad to see you home safe and sound.
47 In my opinion, it's a very sound investment.
48 The sound of the truck receded into the distance.
49 He listened for the slightest sound.
50 Sound waves cannot travel through a vacuum.
51 The sound of the car engine died away.
52 I could hear the sound of a babbling brook.
53 It may sound strange, but it's true.
54 She heard the sound of footsteps outside.
55 The proposal provides a sound basis for a book.
56 The evidence underpinning his case was sound.
57 Don't wake her up she's fast / sound asleep.
58 The sound has reached its maximum.
59 The protesters scattered at the sound of gunshots.
60 Most of the students have a sound understanding of English grammar.
More similar words: sound off, ultrasound, round and round, round, bound, wound, ground, around, founder, round up, expound, all round, compound, round off, boundary, profound, abound in, all around, surround, come round, go around, get around, scoundrel, dumbfound, bum around, confounded, surrounded, background, foundation, surrounding.