Common people or the general populace—ordinary citizens as opposed to elites or the privileged classes.
庶民が通える手頃な値段のレストランが増えている。
Affordable restaurants that ordinary people can go to are increasing.
政治家は庶民の声に耳を傾けるべきだ。
Politicians should listen to the voices of ordinary people.
その商品の宣伝は庶民的なイメージを強調している。
The product's advertising emphasizes a down-to-earth image.