underpin Hear it!

underpin definition

under·pin (un′dər pin′)

transitive verb underpinned -·pinned′, underpinning -·pin′·ning

  1. to support or strengthen from beneath, as with props
  2. to support or strengthen in any way; corroborate, substantiate, etc.

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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