Crossing swords is a popular phrase that means to engage in conflict or to have a disagreement. However, if you want to avoid using this cliche, there are several synonyms you can use instead. Some options include: locking horns, butting heads, bumping heads, clashing, colliding, conflicting, jousting, sparring, battling, fighting, contending, or disputing. Each of these phrases conveys a similar meaning to crossing swords, but with more nuance and creative flair. Experiment with different synonyms to find the perfect expression for your writing or speech.