Definition of since in English:


Line breaks: since
Pronunciation: /sɪns

preposition, conjunction, & adverb

1In the intervening period between (the time mentioned) and the time under consideration, typically the present: [as preposition]: she has suffered from depression since she was sixteen the worst property slump since the war I’ve felt better since I’ve been here [as adverb]: she ran away on Friday and we haven’t seen her since
More example sentences
  • It is hard to believe that a year has passed since then and it is a significant milestone in her fight for life.
  • I booked him for an exhibition immediately and he has been here regularly since then.
  • My focus since then has been on removing this sort of conditioning from everyone.
2 [conjunction] For the reason that; because: delegates were delighted, since better protection of rhino reserves will help protect other rare species
More example sentences
  • Many more elsewhere are struggling since visitors found a reason to stay at home.
  • She was right to ditch the passage since it would have jarred with the spirit of reasoned debate.
  • I was brought in the same room as Raine, since the doctors had mentioned this was the only room left.
3 [adverb] Ago: the settlement had vanished long since
More example sentences
  • That fabric has long since been sundered and social anarchy has been the consequence.
  • Practice has long since taken its leave of policy, and speaks to it about once a year, on a bad line.
  • Many features shown are long since gone, but the maps aim to ensure they are not forgotten.


late Middle English: contraction of obsolete sithence, or from dialect sin (both from dialect sithen 'thereupon, afterwards, ever since').

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