EDIT 24th letter in Russian and Belorusian alphabets and upper case letter corresponding to the lower case ц (U+0446)

Transliterates according to British standard BSI as /Ts/, e.g. М. Цветаева (Russian poetess, 1892-1941): M. Tsvetaeva
according to international (likewise, German and Russian) standard ISO as /C/, e.g. M. Cvetaeva

This letter turns up in many foreign and loan words (e.g. Цезарь - Caesar, Цунами - Tsunami, цирконий - zirconium, Zr) and is also used to transcribe various Chinese charakters, e.g. Янцзы - Yangtze River, Ху Цзиньтао - Hu Jintao

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