Once and Since

Opposite meaning words

sentence examples

Once

Once conjunction - Just at the moment that.
Usage example: you should have stopped wrestling once you knew someone was getting hurt, not five minutes later
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Synonyms for Once
Antonyms for Once
Since is an antonym for once.

Since

Since adverb - Earlier than the present time.
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Synonyms for Since
Once is an antonym for since.
Similar words of once

Similar words of since

Both words in one sentence

  • Hilarious In Hindsight / Anime Since the Latin-American dub studios have similar actor pools depending on which country the series are dubbed, the Relationship Voice Actor trope brings up this more than once.
    Source: Hilarious In Hindsight / Anime
  • People have never let him forget about it since, and he's had to explain more than once that "it was only fucking once."
    Source: Never Live It Down / Music
  • My God What Have I Done / Video Games Richter Belmont in Castlevania: Symphony of the Night screams this once he's freed from being Brainwashed and Crazy, since he's inadvertently helped resurrect Dracula once again.
    Source: My God What Have I Done / Video Games
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Cite this Source
Since and Once. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/once/since
Once & Since. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/once/since>.
Since or Once. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/once/since.

Antonyms for once



Google Ngram Viewer shows how "once" and "since" have occurred on timeline