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In the world, Си (C , Si , Xi ) is a widespread unisex given name. The given name Си is characteristic of Macao, where it is quite a common unisex name, Mongolia, where it is quite a common largely male, but seldom feminine name, and the United Kingdom, where it is quite a common epicene name (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in the United Kingdom, Indonesia, and the United States. Likewise, Си is the last name as well as the forename.
Си is also a popular name for the fictitious and mythical characters: C.C. , the fictional character from Code Geass; JC Denton , the character in Deus Ex video game; Si Wang-mu , the Fictional character in Ender's Game, Ender's Game hexalogy; Si , the fictional Siamese Cat from Lady and the Tramp and C.J. Garrison , the fictional character, The Bold and the Beautiful, and in many other works.