Dead letter : নির্লক্ষ্য পত্র;
Related Words
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Appropriate Prepositions
Delighted at/with (আনন্দিত হওয়া): Sharmin was delighted at/with her husband’s promotion.
Depend upon (নিশ্চিত থাকা, আস্থা রাখা): Sumi depended upon his word.
Fond of (প্রিয়/অনুরাগী): Children are fond of sweets.
Monument to (স্মৃতিসৌধ): The monument to your right is a popular tourist attraction.
Rebel against (বিদ্রোহ করা): The soldiers rebelled against the king.
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Idioms
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.
Null and void (বাতিল): The deed has been null and void now.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.