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Definition of "leak" []

  • To permit the escape, entry, or passage of something through a breach or flaw: rusted pipes that were beginning to leak; a boat leaking at the seams. (verb-intransitive)
  • To escape or pass through a breach or flaw: helium leaking slowly from the balloon. (verb-intransitive)
  • Informal To become publicly known through a breach of secrecy: The news has leaked. (verb-intransitive)
  • To permit (a substance) to escape or pass through a breach or flaw: a damaged reactor leaking radioactivity into the atmosphere. (verb-transitive)
  • Informal To disclose without authorization or official sanction: leaked classified information to a reporter. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "leak" in a sentence
  • "Let the word leak out that you knew there was a chance he went missing but refused to say anything."
  • "The best chance at stopping the leak is a relief well, which is at least two months from completion."
  • "From what I can tell, the primary significance of the leak is the act itself: the sheer comeuppance of it."