airtight Hear it!

airtight definition

air·tight (er′tīt′)

adjective

  1. too tight for air or gas to enter or escape
  2. having no flaws or weaknesses an airtight alibi
  3. giving no opening for attack; invulnerable an airtight defense

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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