- 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.
- before now; ago: 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.
- during or throughout the period of time after
- continuously from or starting from the time when
- seeing that; because
- since that time
