Healthy; not diseased; having all the organs and faculties complete and in perfect action: as, a sound mind; a sound body.Whole; uninjured; unhurt; unmutilated; not lacerated or bruised: as, a sound limb.Free from special defect, decay, or injury; unimpaired; not deteriorated: as, a sound ship; sound fruit; a sound constitution.Morally healthy; honest; honorable; virtuous; blameless.Without defect or flaw in logic; founded in truth; firm; strong; valid; that cannot be refuted or overthrown: as, a sound argument.Right; correct; well-founded; free from error; pure: as, sound doctrine.Reasoning accurately; logical; clear-minded; free from erroneous ideas; orthodox.Founded in right and law; legal; not defective in law: as, a sound title; sound justice.Unbroken and deep; undisturbed: said of sleep.Thorough; complete; hearty.Of financial condition, solvent; strong; not undermined by loss or waste: as, that bank is one of our soundest institutions.Synonyms Hearty, hale, hardy, vigorous.Entire, unbroken, undecayed.5 andSane, rational, sensible.n. Safety.To heal; make sound.To become sound; heal.Soundly; heartily; thoroughly; deeply: now used only of sleeping.n. A narrow passage of water not a stream, as a strait between the mainland and an isle, or a strait connecting two seas, or connecting a sea or lake with the ocean: as, Long Island Sound; the Sound (between Denmark and Sweden).n. In zoöl: The swimming-bladder or air-bladder of a fish.n. A cuttlefish.To measure the depth of; fathom; try or test, as the depth of water and the quality of the ground, by sinking a plummet or lead attached to a line on which is marked the number of fathoms.In surgery, to examine by means of a sound or probe, especially the bladder, in order to ascertain whether a stone is present or not.Figuratively, to try; examine; discover, or endeavor to discover, that which is concealed in the mind of; search out the intention, opinion, will, or wish of.To ascertain the depth of (water) in a ship's hold by lowering a sounding-rod into the pumpwell.To make a sounding with, or carry down in sounding, as a whale the tow-line of a boat.To use the line and lead in searching the depth of water.To descend to the bottom; dive: said of fish and other marine animals.n. In surgery any elongated instrument, usually metallic, by which cavities of the body are sounded or explored; a probe; specifically, an instrument used for exploring or dilating the urethra, or for searching the bladder for stone.n. The sensation produced through the ear, or organ of hearing; in the physical sense, either the vibrations of the sounding-body itself, or those of the air or other medium, which are caused by the sounding-body, and which immediately affect the ear. n. A particular quality or character of tone, producing a certain effect on the hearer, or suggesting a particular cause; tone; note: as, a joyful sound; a sound of woe.n. Vocal utterance.n. Hearing-distance; ear-shot.n. Empty and unmeaning noise.n. Same as signal, 2.n. Synonyms Noise, Sound, Tone. Noise is that effect upon the ears which does not convey, and is not meant to convey, any meaning: as, the noise made by a falling chimney; street noises. Sound is a general word, covering noise and intelligible impressions upon the auditory nerves: as, the sound of cannon, of hoofs, of a trumpet of prayer. Tone is sound regarded as having a definite place on the musical scale, or as modified by feeling or physical affections, or as being the distinctive quality of sound possessed by a person or thing permanently or temporarily: as, his tones were those of anger; a piano of peculiarly rich tone. For technical distinctions, see def. 1 above, noise, and tone.To produce vibrations affecting the ear; cause the sensation of sound; make a noise; produce a sound; also, to strike the organs of hearing with a particular effect; produce a specified audible effect: as, the wind sounds melancholy.To cause something (as an instrument) to sound; make music.To seem or appear when uttered; appear on narration: as, a statement that sounds like a fiction.To be conveyed in sound; be spread or published.To tend; incline.To resound.To cause to produce sound; set in audible vibration.To utter audibly; pronounce; hence, to speak; express; repeat.To order or direct by a sound; give a signal for by a certain sound: as, to sound a retreat.To spread by sound or report; publish or proclaim; celebrate or honor by sounds.To signify; import.To examine by percussion, as a wall in order to discover hollow places or studding; specifically, in med., to examine by percussion and auscultation, in order to form a diagnosis by means of sounds heard: as, to sound the lungs.An obsolete or dialectal contracted form of swound, swoon.