since

From then until now or between then and now.

Before now; ago.

After some point in the past; at a subsequent time.

Continuously from.

Intermittently from.

During the period subsequent to the time when.

Continuously from the time when.

Inasmuch as; because.

After that; from then till now; from a specified time in the past onward; continually afterward; in or during some part of a time between a specified past time and the present; in the interval that has followed a certain event or time; subsequently.

Before now; ago: with an adverbial phrase specifying the amount of time separating the event or time in question from the present: as, many years since; not long since.