k 15
1º_ Consonant of name "ka", which the Spanish took from the Greek alphabet, mainly for technical voices. 2º_ 'K' is the chemical symbol for potassium. 3º_ 'K' is the symbol for the unit of temperature "kelvin". 4º_ 'K' in mathematics represents a constant. 5º_ 'K' is the carat symbol (jewelry). See kt . 6º_ 'k' is the symbol of the prefix kilo ("thousand"). 7º_ Name of a vitamin. 8º_ Name of several works and characters in music, cinema and literature.