Tiffs are small disagreements or conflicts between people, often over trivial matters. There are many synonyms for the word "tiffs" that one can use in both formal and informal contexts. Some common synonyms include arguments, quarrels, disputes, altercations, spats, squabbles, bickering, clashes, wrangling, and feuds. Each of these words suggests a slightly different type or intensity of conflict, which can be useful in conveying a particular tone or emotion in writing or conversation. For instance, "quarrel" implies a more serious or prolonged disagreement, while "bickering" suggests petty or trivial arguments. By choosing the right synonym, you can more precisely capture the essence of a tiff.