Since
Since adverb - Earlier than the present time.
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Synonyms for Since
Until now and since are semantically related in between the present and a previous time topic. In some cases you can use "Until now" instead the word "Since" as an adverb or a preposition.
Until now
Until now adverb - Used in negative statement to describe a situation that has existed up to this point or up to the present time.
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Synonyms for Until now
Since and until now are semantically related in before this time topic. You can use "Since" instead an adverb phrase "Until now".
Mutual synonyms
Both terms in one sentence
- If you followed Thor since Avengers Disassembled, and through Dark Reign and Siege, and up until now, you probably already know this.
Source: Batman Gambit / Comic Books - Near-Death Experience: Yosuke, who until now still believes that he really did die - though you really can't fault him, since he did take a knife to the heart.
Source: Roleplay / The Sky Tides -
In the thirty-three years since she left the Doctor, she never found anyone, until now.
Source: Yank the Dog's Chain
Cite this Source
Until now and Since. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/since/until_now
Since & Until now. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/since/until_now>.
Until now or Since. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/since/until_now.
Google Ngram Viewer shows how "since" and "until now" have occurred on timeline