Rapid : দ্রুত, বেগ বান;
Related Words
rabid  rabidity  raped  rapid  rapidity  rapped  rapt  rarefied  rarified  reaped  repaid  See Words Also In
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Appropriate Prepositions
Apology for (কোনো কারনে ক্ষমা চাওয়া): Sajib should ask apology to her of his mistake.
Caution against(সাবধান): Take all cautions against the danger.
Hanker after (আকাঙ্ক্ষা/লোভ করা): He hankers after riches.
Sick of (ক্লান্ত): He is sick of this idle life.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
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Idioms
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
At the eleventh hour (at the last moment-শেষ মুহুর্তে adv.) The patient was in a dangerous condition and the doctor came at the eleventh hour.
Crying need (জরুরী): Mass education is a crying need for India.
Get rid of (মুক্তি পাওয়া): Try to get rid of the rogue.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.