Viperous : বিষপূর্ণ; বিদ্বেষপূর্ণ; হিংস্র; বিষধর;
Related Words
vaporous  various  veers  veracious  verse  verso  versus  viewers  viperous  vipers  virgo  virus  viruses  vorous  See Words Also In
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Appropriate Prepositions
Aware of(অবগত): I am not aware of his dishonesty.
Convinced of (আশ্বস্ত): You are convinced of his product.
Guilty of (অপরাধী/দোষী): The convict was guilty of murder.
Inquire into (খতিয়ে দেখা): The police officer will inquire into the matter.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
In a fix (মুশকিলে পতিত হওয়া): The man is in a fix with his new hairstyle.
Lose one’s heart (প্রেমে পড়া) — He lost his heart to the girl.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.