The terms "forest" and "woods" are often used interchangeably, and there's no strict, universally agreed upon definition to distinguish them by size. However, here's a general understanding:

* Forest: Typically refers to a larger and more extensive area of densely wooded land with a variety of trees and plant life.

* Woods: Usually denotes a smaller, more localized area of trees, sometimes with a specific type of tree dominating.

So, in general, a forest is considered bigger than woods, but it's not an absolute rule.

It's important to remember that language is fluid and context matters. The specific meaning can depend on the region, local dialect, and even individual usage.