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Cognomen Sines (Sines , 赛因斯 , Сайнс) , around the world, is quite a rare last name. The surname Sines is characteristic of the United States, where it is a rare surname, Norway, and Australia. In absolute terms, it is commonest in the United States, the United Kingdom, and Philippines. Much less frequently, Sines is the forename as well as the last name.