- from then till now (often preceded by ever): He was elected in 1978 and has been president ever since.
- between a particular past time and the present; subsequently: She at first refused, but has since consented.
- ago; before now: long since.
- continuously from or counting from: It has been warm since noon.
- between a past time or event and the present: There have been many changes since the war.
- in the period following the time when: He has written once since he left.
- continuously from or counting from the time when: He has been busy since he came.
- because; inasmuch as: Since you're already here, you might as well stay.
Origin of since
Related Words for sinceago, therefore, already, afterward, later, considering, for, as, after, following, because, from, hence, now, past, subsequently, whereas
- during or throughout the period of time aftersince May it has only rained once
- (sometimes preceded by ever) continuously from or starting from the time whensince we last met, important things have happened
- seeing that; becausesince you have no money, you can't come
- since that timehe left yesterday and I haven't seen him since
Word Origin for since
early 15c., synnes, from sithenes "since," from sithen (plus adverbial genitive -es), from Old English siððan "afterward, from now on, hereafter, further, later, as soon as, after that," originally sið ðan "after that," from sið "after" (see sith) + ðan, weakened form of ðam, dative of ðæt (see that).
As a conjunction from late 14c.; as a preposition from 1510s; "from the time when," hence "as a consequence of the fact that." Modern spelling replaced syns, synnes 16c. to indicate voiceless final -s- sound. Since when? often expressing incredulity, is from 1907.
see greatest thing since sliced bread.