(noun, adjective, verb, adverb, interjection)


1. financially secure and safe

- sound investments

- a sound economy

Similar word(s): unbroken, undamaged, fit, healthy, uninjured, dependable, good, safe, secure, healthy, solid, stable, wholesome

2. exercising or showing good judgment

- a sound approach to the problem

- sound advice

- no sound explanation for his decision

Similar word(s): reasonable, sensible, healthy, intelligent, levelheaded

3. in good condition; free from defect or damage or decay

- a sound timber

- the wall is sound

- a sound foundation

Similar word(s): solid, strong, substantial

4. in excellent physical condition

- a sound mind in a sound body

Similar word(s): healthy, good

5. logically valid

- a sound argument

Similar word(s): valid, reasoned

6. having legal efficacy or force

- a sound title to the property

Similar word(s): valid, effectual, legal

7. vigorous or severe

- a sound thrashing

Similar word(s): strong

8. free from moral defect

- a man of sound character

Similar word(s): righteous

9. (of sleep) deep and complete

- a sound sleeper

Similar word(s): deep, heavy, profound, wakeless

10. complete; thorough

- politicians have no sound grasp of technology issues

- he has a sound understanding of the law

Similar word(s): complete

Sentences with sound as an adjective:

- He was safe and sound.

- In horse management a sound horse is one with no health problems that might affect its suitability for its intended work.

- Fred assured me the floorboards were sound.

- "How are you?" - "I'm sound."

- That's a sound track you're playing.

- Her sleep was sound.

- a sound beating

- a sound title to land


1. Soundly.


1. (Britain, slang) Yes; used to show agreement or understanding, generally without much enthusiasm.

- "I found my jacket." - "Sound."


1. the particular auditory effect produced by a given cause

- the sound of rain on the roof

- the beautiful sound of music

Definition categories: attribute

2. the subjective sensation of hearing something

- he strained to hear the faint sounds

Definition categories: thought, esthesis, sensation

3. mechanical vibrations transmitted by an elastic medium

- falling trees make a sound in the forest even when no one is there to hear them

Definition categories: phenomenon

4. the sudden occurrence of an audible event

- the sound awakened them

Definition categories: event, happening, occurrence, occurrent

5. the audible part of a transmitted signal

Similar word(s): audio

Definition categories: communication

6. (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language

Similar word(s): phone

Definition categories: communication

7. a narrow channel of the sea joining two larger bodies of water

Similar word(s): strait

Definition categories: object, channel

8. a large ocean inlet or deep bay

- the main body of the sound ran parallel to the coast

Definition categories: object, water

Sentences with sound as a noun:

- He turned when he heard the sound of footsteps behind him.  Nobody made a sound.

- Puget Sound; Owen Sound

- Cod sounds are an esteemed article of food.


1. appear in a certain way

- This sounds interesting

Definition categories: perception, appear, look, seem

2. make a certain noise or sound

Similar word(s): go

Definition categories: perception

3. give off a certain sound or sounds

- This record sounds scratchy

Definition categories: perception

4. announce by means of a sound

- sound the alarm

Definition categories: perception, announce, denote

5. utter with vibrating vocal chords

Similar word(s): vocalise, vocalize, voice

Definition categories: communication, articulate, enounce, enunciate, pronounce, say

6. cause to sound

- sound the bell

- sound a certain note

Definition categories: perception

7. measure the depth of (a body of water) with a sounding line

Similar word(s): fathom

Definition categories: change, measure, quantify

Sentences with sound as a verb:

- When the horn sounds, take cover.

- He sounded good when we last spoke.

- That story sounds like a pack of lies!

- He sounds the instrument.

- The "e" in "house" isn't sounded.

- The whale sounded and eight hundred feet of heavy line streaked out of the line tub before he ended his dive.

- When I sounded him, he appeared to favor the proposed deal.

- Mariners on sailing ships would sound the depth of the water with a weighted rope.

- to sound a patient, or the bladder or urethra