noun, directional · the rear seat of a vehicle such as a car or bus

他把书包扔到了汽车后座上。

noun · the literal throne or seat occupied by an empress

皇后缓缓走上大殿，坐上了华丽的后座。

noun, particle · the champion's title or first place in a women's competition

她凭借优异的表现，在这次选美比赛中摘取了后座。

noun · the seat behind the rider of a motorcycle or bicycle

他的自行车后座上安装了一个儿童座椅。