Rudiment : মূলনীতি, সূত্র বা তত্ত্ব;
Related Words
radiant  radiometer  red meat  rodent  rodents  rudiment  rudimental  rudimentary  rudiments  See Words Also In
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Appropriate Prepositions
Annoyed with(ব্যক্তির সাথে বিরক্ত হওয়া): I am annoyed with him.
Beg for(অনুরোধ করা): Maria begged the Superintendent for a seat in the school hostel.
Catch at(ধরা): A drowning man catches at a straw.
Pity for (করুণা, সমব্যথা): I feel pity for this helpless old man.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
Far and wide (সর্বত্র): His fame spread far and wide.
To play on a fiddle (অনর্থক সময় নষ্ট করা - To waste time)-He played on a fiddle by nature.
Round the clock (সমস্ত দিন): He is working round the clock.