Purifier : বিশোধক; সংশোধক;
Related Words
prefer  prefers  proffer  purebred  purifier  purveyor  See Words Also In
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Appropriate Prepositions
Authority on(বিশেষজ্ঞ পন্ডিত): Kamal was an authority on English literature.
Careful of(যত্নশীল থাকা): Sadia is careful of her health.
Contrary to(বিপরীত, পরিপন্থী): Students should not act contrary to the rules of discipline.
Quarrel with (ঝগড়া করা): Some girls quarreled with one another.
Run on (বিরতিহীন চলা): The bus is running on time.
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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.
Hard nut to crack (কঠিন সমস্যা): The problem of adult education is really hard nut to crack.
Out of date (সেকেলে): This fashion is out of date.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.
Well off (স্বচ্ছল) - Jim and Della were not well off.