The letter C itself, used in alphabet listings, abbreviations, or as a symbol.
The letter C is read as 'shii'.
Abbreviation for Celsius temperature scale, often used in weather reports or scientific contexts.
Today's temperature is 25°C.
cyan
Refers to the color cyan, often in printing or design contexts (CMYK).
The cyan ink of this printer has run out.
He wrote an OS in C.
Borrowed from English letter name 'C', used in various technical and everyday abbreviations.