The word "阔绰" is formed by combining the character "阔", which means "wide" or "rich", with the character "绰", which means "ample" or "generous". In this compound, "阔" conveys a sense of breadth or wealth, while "绰" contributes the idea of abundance or lavishness, together resulting in the meaning "extravagant" or "lavish", specifically referring to spending money freely due to substantial financial means.