Sinsyne is a 7 letter English word. It's valid Scrabble word worth 10 points. It's valid Words with friends word worth 11 points.
You can make 63 anagrams from letters in sinsyne (einnssy).
1325-75; Scots and Northern dialect sin subsequent to, after (Middle English, variant of sithen, Old English siththan sith) + syne; replacing
There was never the wale of him sinsyne, and it's a question wi' mony if there ever was his like afore.
We were all back, changed, and at table by lunch time, 11 A.M. Nor have any of us been the worse for it sinsyne.