“十多”的意思是比十大一点，但没有到二十。

"十多" means a little more than ten but less than twenty.

我们说数量的时候，常常用“十多”，比如“十多个人”“十多年”。

When we talk about quantities, we often use "十多", for example, "十多个人" (more than ten people) and "十多年" (more than ten years).