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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
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. 2014.
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Examples from the web for watertight
  • Usually the best time to reach a legally watertight genocide determination has been in a courtroom after the crime has occurred.
  • Unlike any other known protein formation, the structures resemble watertight zippers running perpendicular to the fibril itself.
  • The ship, though crippled, remained watertight except for the damaged area.
  • The hull was subdivided into eleven watertight compartments and had a double bottom extending the entire length of the ship.
  • The ship's crew rushed below deck, trying to identify the leak and seal off watertight compartments.
  • Their outer feathers are flat, well oiled, and watertight.
  • In theory, this system is more watertight than a tax, since the overall level of emissions is fixed.
  • Without watertight financial controls, this could soon get out of hand.
  • Their grip on supply, moreover, is not altogether watertight.
  • The contracts may be watertight, but you can get soaked waiting for a judgment.
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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