Dead letter : নির্লক্ষ্য পত্র;
Related Words
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Appropriate Prepositions
Beg for(অনুরোধ করা): Maria begged the Superintendent for a seat in the school hostel.
Business with (ব্যবসা, কাজ): He is pleased to do business with you.
Object to (প্রতিবাদ করা): Many people objected to the remarks of the leader.
Similar to (সদৃশ): My T-shirt is similar to yours.
Work with (কারো সাথে কাজ করা): They will be working with me on the new project.
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Idioms
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.