Lightheartedness : প্রফুল্লতা; নিরুদ্বিগ্নতা;
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Appropriate Prepositions
Bare of(অনাবৃত, স্বল্প-সজ্জা): The trees of the forest are bare of leaves.
Consent to(মত দেওয়া): My father did not consent to the proposal of my sister’s marriage.
Contrary to(বিপরীত, পরিপন্থী): Students should not act contrary to the rules of discipline.
Lost in (মগ্ন): Simon is lost in meditation.
Run on (বিরতিহীন চলা): The bus is running on time.
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Idioms
ABC - (প্রাথমিক জ্ঞান): I don't know the ABC of politics.
At home (comfortable— আরাম) He feels at home in Dhaka now.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
Soft Soap (নিজ অভিপ্রায়ে/অভিসন্ধিতে তোষামোদ করা): He was expert in soft soap.
Well up (সুপন্ডিত)- Dr. Shahidullah was well-up in Bengali language.