Cosmologist : মহাবিশ্বতত্ত্ববিদ;
Related Words
comeliest  communalist  cosmologist  See Words Also In
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Appropriate Prepositions
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Breakdown of (বিস্তারিত): Here is statistical breakdown of data.
Complain to (কারো কাছে নালিশ করা): You should not complain to his parents.
Concentrate on(কেন্দ্রীভূত করা): Try to concentrate your attention on your studies.
Send for (ডেকে পাঠানো): Send for a doctor immediately.
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Idioms
Carry the day (জয়লাভ করা) The boys carried the day in the debate competition.
Pick one’s pocket (পকেট মারা)— He tried to pick my pocket.
Through and through (পুঙ্খানুপুঙ্খু রুপে)- He read the poem through and through.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.
Widow’s mite (দরিদ্রের ক্ষুদ্র দান): A windows mite is no less important than a large contribution of a rich man.