Luminosity : ঔজ্জ্বল্য; উজ্জ্বলতা; দীপ্তি; প্রভা; আপেক্ষিক উজ্জ্বলতা;
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Appropriate Prepositions
Care for(গ্রাহ্য করা): I do not care for you.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Guilty of (অপরাধী/দোষী): The convict was guilty of murder.
Welcome to (স্বাগত জানানো): You are welcome to our new office.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Man of letters (পন্ডিত ব্যক্তি): You are truly a man of letters.
Yellow dog (হীন ব্যক্তি) - A yellow dog is always hated by all.