Prophylaxis : ব্যাধির আক্রমণ এড়াইবার জন্য চিকিত্সা;
Related Words
propels  prophylactic  prophylactics  prophylaxis  purplish  See Words Also In
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Appropriate Prepositions
Authority over (কর্তৃত্ব, আধিপত্য): She has no authority over his growing daughters.
Bare of(অনাবৃত, স্বল্প-সজ্জা): The trees of the forest are bare of leaves.
Depend upon (নিশ্চিত থাকা, আস্থা রাখা): Sumi depended upon his word.
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
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Idioms
All up with - (পুরোপুরি, হতাশ, সব আশা শেষ): If we can't, it's all up with the councillor.
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
Seventh heaven – (মহাখুশী) – I was in the seventh heaven when I heard the news of my BCS final result.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
To go to the dogs (গোল্লায় যাওয়া)- He has gone to the dogs by keeping evil company.