sound

2
[ sound ]
/ saʊnd /

adjective, sound·er, sound·est.

adverb

deeply; thoroughly: sound asleep.

Origin of sound

2
1150–1200; Middle English sund, Old English gesund (see y-); cognate with Dutch gezond, German gesund

OTHER WORDS FROM sound

sound·ly, adverbsound·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for soundness

British Dictionary definitions for soundness (1 of 5)

sound1
/ (saʊnd) /

noun

verb

See also sound off

Derived forms of sound

soundable, adjective

Word Origin for sound

C13: from Old French soner to make a sound, from Latin sonāre, from sonus a sound

British Dictionary definitions for soundness (2 of 5)

sound2
/ (saʊnd) /

adjective

adverb

soundly; deeply: now archaic except when applied to sleep

Derived forms of sound

soundly, adverbsoundness, noun

Word Origin for sound

Old English sund; related to Old Saxon gisund, Old High German gisunt

British Dictionary definitions for soundness (3 of 5)

sound3
/ (saʊnd) /

verb

to measure the depth of (a well, the sea, etc) by lowering a plumb line, by sonar, etc
to seek to discover (someone's views, etc), as by questioning
(intr) (of a whale, etc) to dive downwards swiftly and deeply
med
  1. to probe or explore (a bodily cavity or passage) by means of a sound
  2. to examine (a patient) by means of percussion and auscultation

noun

med an instrument for insertion into a bodily cavity or passage to dilate strictures, dislodge foreign material, etc
See also sound out

Word Origin for sound

C14: from Old French sonder, from sonde sounding line, probably of Germanic origin; related to Old English sundgyrd sounding pole, Old Norse sund strait, sound 4; see swim

British Dictionary definitions for soundness (4 of 5)

sound4
/ (saʊnd) /

noun

a relatively narrow channel between two larger areas of sea or between an island and the mainland
an inlet or deep bay of the sea
the air bladder of a fish

Word Origin for sound

Old English sund swimming, narrow sea; related to Middle Low German sunt strait; see sound ³

British Dictionary definitions for soundness (5 of 5)

Sound
/ (saʊnd) /

noun

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for soundness (1 of 2)

sound1
[ 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.

Science definitions for soundness (2 of 2)

sound2
[ 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with soundness

sound

In addition to the idioms beginning with sound

  • sound as a bell
  • sound bite
  • sound off
  • sound out

also see:

  • safe and sound
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.