The term "run-ins" can refer to conflicts, clashes, confrontations, or altercations. These synonyms imply a disagreement or dispute between individuals or groups. Other synonyms for the word "run-ins" can include disagreements, arguments, quarrels, fights, or scraps. Each of these words can carry a slightly different connotation, but all refer to situations where tensions have escalated to the point of conflict. Some more informal synonyms could be "beef" or "feud." Regardless of the specific word used, "run-ins" and its synonyms all describe situations where individuals or groups have come into conflict with one another.