An auspicious beginning can signal a positive start to an event, endeavor, or relationship. However, there are many other words that convey similar meanings. Some synonyms for auspicious beginning include promising start, propitious kickoff, favorable commencement, hopeful initiation, encouraging launch, and optimistic outset. Each of these terms conveys a sense of optimism and positive expectations, implying a good omen for what is to come. Additionally, using different synonyms for auspicious beginning can help add variety and depth to your writing and avoid repetition.