Ultra sonic : অতিস্বনক; শ্রুতির অতীত; অতিধ্বনক; শ্রবণাতীত;
Related Words
ultra sonic  ultrasonic  See Words Also In
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Appropriate Prepositions
Avail (oneself) of(সুযোগের স্বব্যবহার করা): I shall avail myself of the first trip to London tomorrow.
Care for(গ্রাহ্য করা): I do not care for you.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Grateful to (কৃতজ্ঞ): We should be grateful to our teachers.
Solution to (সমাধান): None can solution to every problem.
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Idioms
ABC - (প্রাথমিক জ্ঞান): I don't know the ABC of politics.
At random (indiscriminately—এলোপাথাড়ি-adv.) He talks at random like a mad man.
Hush money (ঘুষ): He offered a hush money to disclose the file.
Red tape (official formalities, অফিসের কাজ)— You would not believe the red tape involved in getting the required permits.
Up-to-date (আধুনিক) - Now-a-days ladies are very up to date.