Smoothness : স্নিগ্ধতা;
Related Words
smoothening  smoothing  smoothness  soundness  See Words Also In
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Aim at(আঘাত করার জন্য লক্ষ্য স্থির করা): The hunter aimed at the tiger.
Close to(নিকটে): Our College is close to the Post Office.
Conscious of(সচেতন): I am conscious of my deficiencies.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.
Well off (স্বচ্ছল) - Jim and Della were not well off.
Weal and woe (joy and sorrow, সুখ দঃখ) —Human life is full of weal and woe.