Spat is a verb that means to argue or dispute, typically over a minor issue. There are plenty of synonyms available that can also convey this meaning, including bicker, quarrel, squabble, argue, disagree, scrimmages, tiffs, and rows. Some more colorful alternatives include wrangle, feud, fuss, tangle, clash, scrap, altercation, and fracas. You can also use adjectives such as acrimonious, contentious, tetchy, and testy to describe the tone of the spat. In any case, these synonyms are useful for adding variety to your writing, especially when you need to describe a heated argument or disagreement between characters.