A groundbreaking ceremony is an important event that marks the start of a construction project or the beginning of a new venture. However, there are several other phrases that can be used synonymously with the term "groundbreaking ceremony." For instance, you can use "sod-turning ceremony" or "groundbreaking event" to describe this ceremonial beginning to a project or venture. Other synonyms for groundbreaking ceremony include "foundation-stone laying ceremony", "groundbreaking milestone", "commencement ceremony", or "ribbon-cutting ceremony". Whatever the term used, the main message is to signify the start of something exciting and new, which will bring change to the community.