“Since” is an English word that can be used as an adverb, conjunction, or preposition. This term originated in the 12th century. But most people got confused about what does since mean? The since can be defined as a term used to describe the time between the present moment and mentioned time. In simple words, it is a word that is associated with time. The term “since” can be used in many different ways. It can be used as a preposition as an intervening period between the present time and the time mentioned. It is used as an adverb for the period between now and then. And as a conjunction, it means from the last time until the time under consideration.