Speediness : দ্রুততা;
Related Words
speediness  speeding  swiftness  See Words Also In
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Appropriate Prepositions
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Delegate to (প্রতিনিধি): Nazrul welcomed the delegates to the new conference.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Monument to (স্মৃতিসৌধ): The monument to your right is a popular tourist attraction.
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Idioms
At home (proficient in — দক্ষ) The students of Bangladesh should be at home in Bangla.
Fair and square (সৎ): The learned persons should be fair and square.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.