Rapidity : ক্ষিপ্রতা; বেগ; দ্রুততা;
Related Words
rabid  rabidity  raped  rapid  rapidity  rapt  See Words Also In
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Appropriate Prepositions
Caution against(সাবধান): Take all cautions against the danger.
Creep up (বৃদ্ধি পাওয়া): The prices of are creeping up day by day.
Die of, for, from (মারা যাওয়া): He died of cholera. He died for his country. He died from an injury.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Make from (কোনো উপকরণ দ্বারা সরাসরি তৈরী নয় বোঝাতে): Paper is made from bamboo.
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Idioms
At a low ebb (in an unfavorable situation প্রতিকুল অবস্থায়, ভাটির মুখে) The popularity of this singer is now at a low ebb.
At a standstill (নিশ্চল, অচলাবস্থায়-adj.) The discussion is now at a standstill.
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Bear (a) grudge (bear hostility to— শত্রুতা বা বিদ্বেষ পোষন করা—V) We should not bear (a) grudge against our brethren.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.