When it comes to expressing loyalty, the phrase "with allegiance" is a commonly used term. However, there are multiple synonyms that can be used to convey a similar sentiment. "Fidelity," which means faithfulness or allegiance to a person or cause, is one such synonym. "Devotion" is another synonym which implies a strong commitment to a person, belief or cause. "Obedience" denotes compliance and loyalty to a leader or authority. One might also use "loyalty," "dedication," or "commitment" to express a similar sentiment of being dedicated to a person or group. Regardless of which synonym is used, loyalty and devotion are important traits in building and maintaining strong relationships and communities.