noun

"Circulation" refers to the movement of something in a particular area. In the context of biology, it means the flow of blood through the heart and blood vessels. In general usage, it can also refer to the movement or distribution of information, goods, or money within a system or among people.

Example

1. Regular exercise improves blood circulation.
2. Rumors about the company's financial troubles were in circulation.
3. The newspaper has a large circulation.