Threescore Share definition Flag A score is 20. Threescore is 60. Traditionally people were allotted "threescore years and ten" of life, i.e. 3 × 20 + 10 = 70 years. He lived to be threescore and twelve. Overrunning his allotment by two years. Threescore by SSSLiPkid August 12, 2016 0 0 Get merch Get the Threescore mug. Buy Now — $32.95 See more merch