Correct option is A
The correct synonym of the given word is (a)
annihilate.
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Given word:
Vitiate
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Meaning: To spoil, impair, or weaken the effectiveness, quality, or validity of something.
(Hindi meaning: भ्रष्ट करना, दूषित करना)
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Example: "The evidence was vitiated by the investigator's improper handling."
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Correct answer word:
Annihilate
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Meaning: To destroy completely or reduce to nothing.
(Hindi meaning: नष्ट करना, समाप्त करना)
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Example: "The tornado annihilated everything in its path."
Synonyms:
Corrupt, debase, impair, spoil
Antonyms:
Validate, strengthen, enhance, support
Meanings of all the other given options:
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Option (b) facilitate : To make an action or process easier.
(Hindi meaning: सुविधा देना)
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Option (c) validate : To confirm or prove the accuracy or truth of something.
(Hindi meaning: सत्यापित करना)
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Option (d) propagate : To spread or promote an idea, theory, or knowledge.
(Hindi meaning: प्रचार करना या फैलाना)