Definitions

1. adjective

relating to or characteristic of a particular region or area

“The regional cuisine of the south is known for its spicy flavors.”

2. noun

a region or area

“The regional government has been working to improve local infrastructure.”

3. noun

a group or association of people or organizations with a particular interest or activity

“The regional sports team won the national championship.”

4. noun

a specific area of study or expertise

“He is an expert in regional economics and development.”