Dictionary.com
Thesaurus.com
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:

The two men have spoken by phone twice since Burnham became prime minister in July, with Downing Street saying those calls established a "productive relationship".

From BBC Sep. 22, 2026

The school’s president, Nariman Farvardin, said that post-graduate outcomes have been a major priority of the school for at least since he became the Stevens’ leader in 2011.

From MarketWatch Sep. 22, 2026

Accusations against Butts, who has served as the city’s leader since 2010, came to public attention Thursday when a coalition of political activists held a news conference in the same location.

From Los Angeles Times Sep. 22, 2026

Meanwhile, loadings from Red Sea terminals have dropped to zero since the attacks on the East-West pipeline earlier in September.

From The Wall Street Journal Sep. 22, 2026

It was August now, almost a month since they had left home.

From "Adventures of Don Quixote" by Argentina Palacios

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com