Since is a conjunction that indicates a starting point in time or an event that has occurred in the past and continues to the present. It is used to establish a causal relationship between two actions or to describe a duration.
In addition, since can be used to introduce a reason or a cause, such as “Since it is raining, we should stay indoors.”
Overall, since is a versatile word that can be used to express time, duration, causality, and reasoning in a concise manner.
