Pumica : ঝাপপাথর;
Related Words
pneumic  pneumonic  pumas  pumica  pumice  punic  See Words Also In
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Appropriate Prepositions
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Convinced of (আশ্বস্ত): You are convinced of his product.
Destitute of (নিঃস্ব; বিবর্জিত): He is destitute of any friend here.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Indifferent to (উদাসীন): Everybody is indifferent to my problem.
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Idioms
At a round rate (at the fixed price – নির্ধারিত মূল্যে) Things are selling in the shop at a round rate.
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.