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invective
inveigh
inveigle
invent
invention
inventive
inventor
inventory
inventory movement
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inveracity
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invalidity
in·va·lid·i·ty [ ìnvə líddətee ]


noun 
Definition:
 
1. unsoundness: a lack of soundness or accuracy that results from an error in reasoning
2. law lack of legality: the condition of not being legally binding or enforceable
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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