Letter The twenty-fourth letter of the English alphabet. Numeral X (noun) (Roman_numerals) The number 10. in mathematics, an unknown quantity or unknown value. Adjective (Former British film certificate) Suitable only for those aged 16 or (later) 18 years and over. (Of a film) Obscene. a mark made by a person who cannot read or write. Noun last name taken by Malcolm Little who would henceforth call himself Malcolm X. X -- Xa Xb Xc Xd Xe Xf Xg Xh Xi Xj Xk Xl Xm Xn Xo Xp Xq Xr Xs Xt Xu Xv Xw Xx Xy Xz
X (noun)
X -- Xa Xb Xc Xd Xe Xf Xg Xh Xi Xj Xk Xl Xm Xn Xo Xp Xq Xr Xs Xt Xu Xv Xw Xx Xy Xz