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Synonyms

since

American  
[sins] / sɪns /

adverb

  1. from then till now (often preceded byever ).

    He was elected in 1978 and has been president ever since.

  2. between a particular past time and the present; subsequently.

    She at first refused, but has since consented.

  3. before now; ago.

    long since.


preposition

  1. continuously from or counting from.

    It has been warm since noon.

  2. between a past time or event and the present.

    There have been many changes since the war.

conjunction

  1. in the period following the time when.

    He has written once since he left.

  2. continuously from or counting from the time when.

    He has been busy since he came.

  3. because; inasmuch as.

    Since you're already here, you might as well stay.

since British  
/ sɪns /

preposition

  1. during or throughout the period of time after

    since May it has only rained once

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

conjunction

  1. (sometimes preceded by ever) continuously from or starting from the time when

    since we last met, important things have happened

  2. seeing that; because

    since you have no money, you can't come

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. since that time

    he left yesterday and I haven't seen him since

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
since Idioms  

Usage

See as 1.

Etymology

Origin of since

First recorded in 1400–50; Late Middle English (adverb) syns, sinnes “thereupon, afterwards,” Middle English (adverb and conjunction) sithenes “afterwards, from (the specified time), because,” equivalent to sithen “after that, since” ( Old English siththan, originally sīth thām “after that”) + -es; see origin at sith, -s 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Last week, South Korea's president proposed talks with its northern neighbour on officially ending the war between the two that is technically still active since an armistice was signed in 1953.

From BBC Aug. 16, 2026

The superhero film fronted by Tom Holland and real-life wife Zendaya has brought in more than $2 billion globally since its July 31 release, according to industry watcher Exhibitor Relations.

From Barron's Aug. 16, 2026

Judge Rudofsky, 47, has sat on the court in the Eastern District of Arkansas since Mr. Trump put him there in 2019.

From The Wall Street Journal Aug. 16, 2026

Mike Mullen, former chairman of the Joint Chiefs of Staff, told ABC’s “This Week” that morale aboard the Lincoln has improved since sailors learned they will finally be coming home.

From Salon Aug. 16, 2026

The United States, which has occupied the Philippines since the Spanish-American War in 1898, is one of those enemies.

From "At Last She Stood" by Erin Entrada Kelly

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