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Surname سي (Si , C. , Sy , along with others...) , around the globe, is a prevalent cognomen. The family name سي is characteristic of Syria, where it is a prevalent surname, Senegal, where it is a widespread surname, and Macao, where it is a common surname (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Syria, China, and Senegal. Also, سي is the forename as well as the last name.