Nigrescence : কৃষ্ণতা;
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Adapt to(খাপ খাওয়ানো): Everybody must adopt himself to new environment.
Call for(চাওয়া): I will call for his explanation.
Hunger for (আকাঙ্কা): The teacher has a great hunger for knowledge.
Indispensable to (অত্যাবশ্যকীয়): Your help is indispensable to him.
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Idioms
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
Pandora’s box (আপাতঃ দৃষ্টিতে ভালো মনে হলেও আসলে ভালো নয়)—His words proved to be Pandora’s box.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.