On the air : বেতারভাষণে বা বেতারপ্রচারে রত; বেতারযোগে ঘোষিত;
Related Words
on target  on the air  on the rack  on the rise  on the road  on the rocks  on the run  See Words Also In
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Appropriate Prepositions
Answerable to (কারো কাছে জবাবদিহিতা করা): He is not answerable to anybody for his mistake.
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Close to(নিকটে): Our College is close to the Post Office.
Delegate to (প্রতিনিধি): Nazrul welcomed the delegates to the new conference.
Faithful to (বিশ্বস্ত): The dog is very faithful to its master.
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Idioms
At home (comfortable— আরাম) He feels at home in Dhaka now.
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Out of date (সেকেলে): This fashion is out of date.
Set something right (ঠিক করা)— He will set the machine right.