The word 'squabbler' refers to a person who engages in petty arguments or disputes. Other synonyms for this word include bickerer, wrangler, arguer, quarreler, and fighter. A bickerer refers to someone who engages in minor arguments, while a wrangler is someone who loves to argue about trivial matters. An arguer is someone who frequently engages in disputes, while a quarreler is someone who may engage in heated arguments or disagreements. A fighter is someone who is willing to physically fight to defend their views. These synonyms are useful in describing individuals who may be difficult to communicate effectively with due to their argumentative nature.