"Jumping-off" is a term commonly used to refer to the beginning of a journey, adventure or endeavor. However, there are several synonyms that can be used to express the same meaning, such as starting point, departure, launching pad, stepping stone, kickoff, outset, genesis and threshold. These words are often used interchangeably, depending on the context of the sentence. While they differ slightly in their connotations, they all share the sense of beginning or initiation of something new. Using these synonyms can enrich your writing and make it more varied and interesting, helping to engage your reader and hold their attention.