Getting under way refers to starting or beginning a task, activity, or journey. There are several synonyms that can be used to convey the same meaning. One such synonym is commencing, which means to start or begin. Another alternative is initiating, which implies the start of a process or action. Launching is also a suitable synonym for getting under way, which refers to starting a project or venture. Setting into motion is another phrase that can be used in place of getting under way, and it implies beginning something that was previously inactive. These synonyms can be used interchangeably with getting under way to convey a similar meaning.