The word "wadd" primarily refers to a particular way of walking with short, heavy steps. However, there are several other words that can be used interchangeably with wadd, such as waddle, toddle, lumber, shuffle, and hobble. All of these words convey a sense of movement that is slow, awkward, or clumsy. While they may have slightly different connotations or be used more commonly in certain contexts (e.g. waddle can refer specifically to the way a duck or penguin walks), they all essentially mean the same thing as wadd. Using synonyms can help to avoid repetition in writing, and can also add variety and nuance to language.