noun · the periphery, rim, or area surrounding a specific location

这里的周边环境很安静。

noun · spin-off products related to a media franchise or celebrity; short for 周边商品 zhōu​biān​shāng​pǐn

粉丝们在抢购偶像的周边。

noun · relating to computer hardware devices connected to a host computer

电脑周边包括打印机和扫描仪。