有 (yǒu) can mean "to have," but it's also used to express existence.

Structure
The verb 有, "to have", can also be used to express existence. This is similar to saying "there is" or "there are" in English.

Examples

Rìběn yǒu hěn duō zhōnɡɡuórén.
日本 有 很 多 中国人。
There are many Chinese people in Japan.