Certain and Sound

Certain

Certain adjective - Known but not named.

Sound is a synonym for certain in reliable topic. In some cases you can use "Sound" instead an adjective "Certain", when it comes to topics like undoubtable.

Nearby Words: certainty, certainly

Sound

Sound adjective - According to the rules of logic.

Certain is a synonym for sound in reliable topic. Sometimes you can use "Certain" instead an adjective "Sound".

Both words in one sentence

Cite this Source
Sound and Certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/certain/sound
Certain & Sound. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/certain/sound>.
Sound or Certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/certain/sound.
Google Ngram Viewer shows how "certain" and "sound" have occurred on timeline