Ontologies : তত্ত্ববিদ্যা;
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Appropriate Prepositions
Call in(ডাকিয়া আনা): They called in a doctor.
Cause for (চিন্তিত হওয়ার কারণ): He has never given me any cause for concern.
Defend against (রক্ষা করা): We will defend our country against all enemies.
Effect of (প্রভাব): The effect of corruption is very harmful for our society.
Senior to (বয়সে বড়): He is senior to me by two years.
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Idioms
At home (comfortable— আরাম) He feels at home in Dhaka now.
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
Pick a quarrel (ঝগড়া করা)—Do not pick a quarrel.
Up-to-date (আধুনিক) - Now-a-days ladies are very up to date.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.