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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; 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.

Since the park was established in 2004, penguin colonies have been closely observed by researchers from the Centro de Investigaciones de Puerto Deseado of the Universidad Nacional de la Patagonia Austral, working alongside rangers from Monte Leon National Park.

From Science Daily

The numbers alone are impressive - 15 goals and four assists in all competitions since his £79m move from Eintracht Frankfurt in the summer.

From BBC

Since the 2020-21 season, the period where they have the strongest and most detailed tracking data, the top under-23 strikers in their assessment were Erling Haaland, Kylian Mbappe, Isak and Ekitike.

From BBC

He has scored or assisted every 112 minutes in the Premier League this season, which is the best ratio by a Liverpool player in their first season at the club since Salah in 2017-18 - one every 70 minutes.

From BBC

New England is seeking a record seventh Lombardi Trophy, and its first since the departure of Tom Brady, widely considered the NFL's greatest ever player.

From Barron's