"Vast areas" refers to large, expansive or extensive regions. It indicates that something is spread out over a wide space or covers a significant area.
Sentences with «vast areas»
Only the availability of vast areas of virgin land prevented an early collapse of the industry. (promusa.org)
It has applications in vast areas such as engineering, arts, and sciences. (livewebtutors.com)
Critics say the move shows how the centrally appointed commissioners who cover vast areas ignore local knowledge. (schoolsweek.co.uk)