A guardian of morals is a person who takes responsibility for ensuring that a particular moral code is upheld. This phrase can be separated into two components, 'guardian' and 'morals,' which can be replaced with synonyms to create more impactful variations. Some synonyms for 'guardian' include protector, defender, custodian, and keeper. For 'morals,' we can use terms such as ethics, principles, values, and standards. When we combine these synonyms, we get new phrases such as keeper of ethics, protector of principles, defender of values, or custodian of standards. Each of these phrases emphasizes a particular aspect of moral guardianship and can be used in a variety of contexts.