Ontological : সত্তাতাত্ত্বিক; সত্তাতত্ত্বীয়;
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Appropriate Prepositions
Absorbed in(মগ্ন): I am absorbed in my study.
Adhere to (লেগে থাকা, অটল থাকা): You should adhere to your principal.
Zeal for (উৎসাহ): Forhad has great zeal for cricket.
Ask about (কাউকে খোঁজ করা): Rahim asked about Karim.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
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Idioms
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
Fall flat (ফলপ্রসূ না হওয়া): This business is going to fall flat.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Pick a quarrel (ঝগড়া করা)—Do not pick a quarrel.
Short cut (সংক্ষিপ্ত পথ)— He comes by this shortcut.