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adjective, sounder, soundest.
1.
free from injury, damage, defect, disease, etc.; in good condition; healthy; robust:
a sound heart; a sound mind.
2.
financially strong, secure, or reliable:
a sound business; sound investments.
3.
competent, sensible, or valid:
sound judgment.
4.
having no defect as to truth, justice, wisdom, or reason:
sound advice.
5.
of substantial or enduring character:
sound moral values.
6.
following in a systematic pattern without any apparent defect in logic:
sound reasoning.
7.
uninterrupted and untroubled; deep:
sound sleep.
8.
vigorous, thorough, or severe:
a sound thrashing.
9.
free from moral defect or weakness; upright, honest, or good; honorable; loyal.
10.
having no legal defect:
a sound title to property.
11.
theologically correct or orthodox, as doctrines or a theologian.
adverb
12.
deeply; thoroughly:
sound asleep.
noun
1.

a periodic disturbance in the pressure or density of a fluid or in the elastic strain of a solid, produced by a vibrating object. It has a velocity in air at sea level at 0°C of 331 metres per second (741 miles per hour) and travels as longitudinal waves
(as modifier): a sound wave

2.
(modifier) of or relating to radio as distinguished from television: sound broadcasting, sound radio
3.
the sensation produced by such a periodic disturbance in the organs of hearing
4.
anything that can be heard
5.
a particular instance, quality, or type of sound: the sound of running water
6.
volume or quality of sound: a radio with poor sound
7.
the area or distance over which something can be heard: to be born within the sound of Big Ben
8.
the impression or implication of something: I don’t like the sound of that
9.
(phonetics) the auditory effect produced by a specific articulation or set of related articulations
10.
(often pl) (slang) music, esp rock, jazz, or pop
verb
11.
to cause (something, such as an instrument) to make a sound or (of an instrument, etc) to emit a sound
12.
to announce or be announced by a sound: to sound the alarm
13.
(intransitive) (of a sound) to be heard
14.
(intransitive) to resonate with a certain quality or intensity: to sound loud
15.
(copula) to give the impression of being as specified when read, heard, etc: to sound reasonable
16.
(transitive) to pronounce distinctly or audibly: to sound one’s consonants
17.
(law) (intransitive) usually foll by in. to have the essential quality or nature (of): an action sounding in damages
adjective
1.
free from damage, injury, decay, etc
2.
firm; solid; substantial: a sound basis
3.
financially safe or stable: a sound investment
4.
showing good judgment or reasoning; sensible; wise: sound advice
5.
valid, logical, or justifiable: a sound argument
6.
holding approved beliefs; ethically correct; upright; honest
7.
(of sleep) deep; peaceful; unbroken
8.
thorough; complete: a sound examination
9.
(Brit, informal) excellent
10.
(law) (of a title, etc) free from defect; legally valid
11.
constituting a valid and justifiable application of correct principles; orthodox: sound theology
12.
(logic)

(of a deductive argument) valid
(of an inductive argument) according with whatever principles ensure the high probability of the truth of the conclusion given the truth of the premises
another word for consistent (sense 5b)

adverb
13.
soundly; deeply: now archaic except when applied to sleep
verb
1.
to measure the depth of (a well, the sea, etc) by lowering a plumb line, by sonar, etc
2.
to seek to discover (someone’s views, etc), as by questioning
3.
(intransitive) (of a whale, etc) to dive downwards swiftly and deeply
4.
(med)

to probe or explore (a bodily cavity or passage) by means of a sound
to examine (a patient) by means of percussion and auscultation

noun
5.
(med) an instrument for insertion into a bodily cavity or passage to dilate strictures, dislodge foreign material, etc
noun
1.
a relatively narrow channel between two larger areas of sea or between an island and the mainland
2.
an inlet or deep bay of the sea
3.
the air bladder of a fish
noun
1.
the Sound, a strait between SW Sweden and Zealand (Denmark), linking the Kattegat with the Baltic: busy shipping lane; spanned by a bridge in 2000. Length of the strait: 113 km (70 miles). Narrowest point: 5 km (3 miles) Danish name Øresund Swedish name Öresund

sound 1 (sound)
n.

Vibrations transmitted through an elastic material or a solid, liquid, or gas, with frequencies in the range of 20 to 20,000 hertz, capable of being detected by human organs of hearing.

Transmitted vibrations of any frequency.

A distinctive noise.

v. sound·ed, sound·ing, sounds
To auscultate.

sound 2
adj.

Free from defect, decay, or damage; in good condition.

Free from disease or injury.

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.
sound 1
(sound)

A type of longitudinal wave that originates as the vibration of a medium (such as a person’s vocal cords or a guitar string) and travels through gases, liquids, and elastic solids as variations of pressure and density. The loudness of a sound perceived by the ear depends on the amplitude of the sound wave and is measured in decibels, while its pitch depends on its frequency, measured in hertz.

The sensation produced in the organs of hearing by waves of this type. See Note at ultrasound.

sound 2
(sound)

A long, wide inlet of the ocean, often parallel to the coast. Long Island Sound, between Long Island and the coast of New England, is an example.

A long body of water, wider than a strait, that connects larger bodies of water.

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