(uncountable) The state or quality of being sound. / (countable) The result or product of being sound. / (logic) The property (of an argument) of not only being valid, but also of having true premises.

plural of soundness

present participle of sound

Test made with a probe or sonde. / A measured depth of water. / The act of inserting of a thin metal rod into the urethra of the penis for medical or sexual purposes

Emitting a sound. / Sonorous.

The action of the verb to sound.

The strait that separates Zealand (an island of Denmark) from Scania (part of Sweden); also sometimes called by the Danish name, Øresund. / Synonym of Plymouth Sound, Devon, England.

A long, thin probe for sounding or dilating body cavities or canals such as the urethra; a sonde.

(intransitive) Dive downwards, used of a whale. / To ascertain, or try to ascertain, the thoughts, motives, and purposes of (a person); to examine; to try; to test; to probe.

(intransitive) To produce a sound. / (copulative) To convey an impression by one's sound. / (intransitive) To be conveyed in sound; to be spread or published; to convey intelligence by sound.