c is one of the 1000 most common headwords. by - c - cake Pronunciation IPA (key): /si/ Audio (US)(file) Audio (UK)(file) Homophones: see, sea Noun LetterC or c The letter C C is the third letter of the alphabet. "b" comes before "c" (school) In some schools, an C is the passing grade. Albert only just passed the exam; he got a C. Letters of the Alphabet A a - B b - C c - D d - E e - F f - G g - H h - I i - J j - K k - L l - M m N n - O o - P p - Q q - R r - S s - T t - U u - V v - W w - X x - Y y - Z z Wikiwand - on Seamless Wikipedia browsing. On steroids.