Hypersonic : শব্দাপেক্ষা পাঁচগুণ গতিবেগসম্পন্ন;
Related Words
hyper conscious  hyperconscious  hypersensitive  hypersonic  See Words Also In
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Appropriate Prepositions
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Indulge in (প্রশ্রয় দেওয়া): You should not indulge in idleness.
Pity for (করুণা, সমব্যথা): I feel pity for this helpless old man.
Repent on (নির্ভরশীল): He is repent on his parents.
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Idioms
Fair and square (সৎ): The learned persons should be fair and square.
Laughing stock (হাসির পাত্র)— He is a laughing stock to all.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.