1. to diminish or lessen the power, effect, or authority that someone or something has over others or situations
The new regulations aim to reduce the influence of foreign companies in the market.
As novas regulamentações visam reduzir a influência de empresas estrangeiras no mercado.
2. to weaken someone's ability to persuade, affect, or control others
The scandal helped reduce his influence within the political party.
O escândalo ajudou a reduzir sua influência dentro do partido político.