The word "daddy" is a common term used to refer to a father figure. However, there are many other words and phrases that can be used as synonyms for this term. Some of the most commonly used words include "dad, "father," "papa," "pop," "old man," "daddy-o," and "pa." These words vary in formality, tone, and usage, and are used in different contexts and situations. For instance, "daddy-o" can be considered a more informal and casual version of "daddy," while "father" might be seen as a more formal and respectful way to refer to a dad. Ultimately, the synonym one chooses to use will depend on the tone, setting, and intent of the conversation.