Center and Externality

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

Externality is an antonym for center.

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

Externality noun - The quality or state of being outside or directed toward or relating to the outside or exterior.

Center is an antonym for externality in external part of something topic.

Nearby Words: external, externalize, externalise, externally, externalized