The phrase "get the ball rolling" is commonly used to refer to starting or initiating a task or project. However, there are several other synonyms that can be used to convey the same meaning. For instance, "kick things off," "begin the process," "start the ball rolling," "set things in motion," "launch the project," "initiate the process," "commence the task," and "get things started." All of these synonyms can be used interchangeably with "get the ball rolling." It's important to note that using synonyms can add variety to your language and make your speech or writing more interesting to your audience.