The phrase "adjust differences" refers to resolving conflicts or disagreements between individuals or groups. There are various synonyms for this phrase that can be used interchangeably, depending on the context of the situation. Some common synonyms include reconcile, settle, resolve, reconcile, mediate, and arbitrate. These words all imply the idea of bringing conflicting parties to a point of agreement, although they may differ in their nuances. For example, mediate suggests finding a compromise between two parties, while arbitrate implies a third party making a decision based on impartial judgment. Ultimately, the choice of synonym depends on the tone and objective of the communication.