বায়ু-পাম্প: [Noun] Air-pump.
Related Words
বায়ু-পাম্প  বায়ুতরঙ্গ  See Words Also In
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Appropriate Prepositions
Adequate to(সমানুপাতিক): The salary, he gets, is not adequate to the volume of work he has to do.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Faithful to (বিশ্বস্ত): The dog is very faithful to its master.
Greed for (লোভ): He has an indomitable greed for wealth.
Rule over (শাসন করা): In the absence of the Parliament, the President rules over the country.
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Idioms
Bear in mind (মনে রাখা): Always bear in mind that you are a daughter of a reputed person.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.
Out of date (সেকেলে): This fashion is out of date.