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WordNet-Online 
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| Definitions from the WebTreacheryNoun 1. Deceitful or traitorous behavior. 2. An act of betrayal or disloyalty. Sample sentence: The treachery of his supposed friends left him feeling deeply hurt and betrayed.Related products on Amazon Adjective 1. Characterized by deceit or betrayal. Sample sentence: The treacherous politician's motives were questioned by the public.Related products on Amazon Adverb 1. In a deceitful or disloyal manner. Sample sentence: He spoke treacherously against his former business partner.Related products on Amazon Related products: | ||||
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