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watertight

[waw-ter-tahyt, wot-er-] /ˈwɔ tərˌtaɪt, ˈwɒt ər-/
adjective
1.
constructed or fitted so tightly as to be impervious to water:
The ship had six watertight compartments.
2.
so devised or planned as to be impossible to defeat, evade, or nullify:
a watertight contract; a watertight alibi.
Origin of watertight
1350-1400
1350-1400; Middle English; see water, tight
Related forms
watertightness, noun
nonwatertight, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for watertight
Historical Examples
  • The Pimas make the famous black and white, watertight baskets, which are too well known to need description.

    Aw-Aw-Tam Indian Nights J. William Lloyd
  • Before them was the watertight door, in which was set a large pane of quarsteel.

    Under Arctic Ice H.G. Winter
  • The torpedo is divided into five compartments by watertight steel bulkheads.

    The Romance of Modern Invention Archibald Williams
  • We might as well make our roof as watertight as we can before dark.

    Yorke The Adventurer Louis Becke
  • New waterways, of a most substantial form, were added; and the ship was divided into watertight compartments.

    The Great Frozen Sea Albert Hastings Markham
  • Her watertight bulkheads were holding, but had been badly strained.

  • If she contains no watertight partitions whatsoever, her sinking, due to damage below the water-line, is a mere matter of time.

    An Unsinkable Titanic John Bernard Walker
  • Frank slammed the watertight door and then turned to Murphy.

  • (a) The inner floor of the double bottom should be extended up the sides to a watertight connection with the middle deck.

    An Unsinkable Titanic John Bernard Walker
  • As Mr. Palmer remarks "this statute is both elastic and watertight."

    More Portmanteau Plays Stuart Walker
British Dictionary definitions for watertight

watertight

/ˈwɔːtəˌtaɪt/
adjective
1.
not permitting the passage of water either in or out: a watertight boat
2.
without loopholes: a watertight argument
3.
kept separate from other subjects or influences: different disciplines are often thought of in watertight compartments
Derived Forms
watertightness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for watertight
adj.

late 14c., from water (n.1) + tight. Figurative use from 1640s.

Online Etymology Dictionary, © 2010 Douglas Harper
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