Proficiency : পারদর্শিতা, দক্ষতা, উন্নতি;
Related Words
profi ciency  proficiencies  proficiency  See Words Also In
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Caution against(সাবধান): Take all cautions against the danger.
Quick at (চটপটে): A cashier must be quick at figures.
Regret for (দুঃখ করা): We regretted for his failure.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
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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 one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Call in question (সন্দেহ করা): No one can call his honesty in question.
Put the cart before the horse (to reverse the natural order of things-কোনো জিনিসের স্বাভাবিক ক্রমকে পাল্টে দেয়া) - The leader put the cart before the horse.
Short temper (রগচটা)— He is a man of short temper.