The phrase "as good as your word" is often used to describe someone who is reliable and trustworthy. There are many synonyms for this phrase, including "true to your word," "trustworthy," "dependable," "honest," "credible," "faithful," "loyal," "sincere," "upstanding," and "reputable." All of these words express a similar sentiment, and each one can be used to describe someone who consistently follows through on their promises and commitments. Whether you're looking for a way to praise a friend or colleague for their reliability, or simply want to convey the importance of keeping your word, these synonyms are a great place to start.