The letter C can be quite versatile, serving as the third letter in the English alphabet, a musical note, a Roman numeral, and more. When it comes to synonyms for the letter C, examples include carbon, copper, calcium, citrus, and countless others. Variations of these words, such as carbonate, cuprous, calcite, citrine, and more, can also be considered synonyms. In terms of words that begin with C, we have a plethora of options, including charismatic, courageous, caring, confident, clever, and creative. Whether used in scientific terms or in describing personal traits, there are many synonyms for the letter C that can be put to use in colorful language.