adv.
Pronunciation: ' sin(t)s
Function: adverb
Etymology: Middle English sins, contraction of sithens, from sithen, from Old English siththan, from s ī th tham after that, from s ī th after, late + tham, dative of thæt that; akin to Old High German s ī d later and perhaps to Latin setius to a lesser degree
Date: 15th century
1 : from a definite past time until now <has stayed there ever since >
2 : before the present time : AGO <long since dead>
3 : after a time in the past : SUBSEQUENTLY <has since become rich>