The word 骗子 is formed by combining the character 骗, which means "to deceive" or "to swindle", with the character 子, which here functions as a nominalizing suffix commonly used to denote a person associated with the preceding action or characteristic. Thus, 骗子 directly and idiomatically constructs the meaning of "a person who deceives" or "a swindler". This structure is a standard and intuitive pattern in Chinese for creating agent nouns, where an action is followed by this suffix to label the doer of that action.