Dictum factum is a Latin phrase that means "what is said, is done." If you're searching for synonyms for dictum factum, some phrases that come to mind include putting words into action, following through, and keeping your promise. Other options include putting your money where your mouth is, following your words with deeds, and practicing what you preach. Ultimately, these phrases all carry the same idea: when you say something, you should be willing to back it up with action. Using these synonyms can add variety to your writing and emphasize the importance of following through on your words and intentions.