The word "outnumbering" means to exceed or surpass in number. There are several synonyms for this word, including outweigh, overbalance, overmatch, overrun, overpower, and overtake. "Outweigh" suggests a physical weight comparison, while "overbalance" suggests an imbalance in favor of one side. "Overmatch" implies a superior force in terms of strength or ability. "Overrun" suggests a sudden and overwhelming attack or invasion. "Overpower" means to defeat or gain control over someone or something. "Overtake" suggests catching up to and surpassing someone or something in a race or competition. Overall, these synonyms for "outnumbering" convey the idea of being in a position of greater numerical or physical advantage.