Center and Gray area

Center noun - A thing or place that is of greatest importance to an activity or interest.

Gray area and center are semantically related In some cases you can use "Gray area" instead a noun "Center".

Nearby Words: centre, central, centered, centrally, centering

Gray area noun - An intermediate area; a topic that is not clearly one thing or the other.

Center and gray area are semantically related in meeting ground topic. You can use "Center" instead a noun phrase "Gray area".