verge on

verge on idiom
  1. Approach, come close to, as in Her ability verges on genius. [Early 1800s]
  2. Be on the edge or border of, as in Our property verges on conservation land. [Late 1700s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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