ＸエックスekkusuＸＸShow answer(Space)Suspend(@)ＸＸekkusuNoun (common)Noun (common) (futsuumeishi)Noun (common)X; xunknown quantity; an unknownＸＸekkusuX; xWhat does Ｘ mean in English?X; x(n)unknown quantity; an unknown(n)Search the picture dictionary for Ｘ
