Some will only fund in a certain geographical region or a specific area.

Suppose you need some kind of a pass to get to certain regions?

The single was released in certain regions on 14 November 2005.

However, the economic and social importance of tobacco in certain regions must be taken into account.

Finding a desired species that is known to grow in a certain region can be a challenge.

It is particularly concentrated in certain regions of the central nervous system.

There is coal in certain regions and they do a little mining.

Breeding is seasonal, more so in certain regions than others.

In addition, certain regions can be influenced by external factors.