What are the antonyms for LEAK?

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Synonyms for LEAK

Usage Examples for LEAK

  1. Fearful that in the meantime the secret of the invention might leak out, or that the old servant's heirs might insist on having a share in the discovery, Gutenburg melted up his forms and abandoned further labor for a time. - "Paul and the Printing Press" by Sara Ware Bassett
  2. There's none in them to leak out of mine. - "The Pioneers" by Katharine Susannah Prichard