Systematics : উদ্ভিদের বর্গীকরণ-বিদ্যা;
Related Words
systematic  systematical  systematically  systematics  systematize  systematized  systematizes  systematizing  See Words Also In
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Appropriate Prepositions
Zeal for (উৎসাহ): Forhad has great zeal for cricket.
Concerned with(জড়িত): She was concerned with such things.
Cope with (এঁটে ওঠা; তাল মিলিয়ে চলা): They cannot cope with so much work.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Loyal to (অনুগত): Every citizen must be loyal to the state.
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Idioms
Arm in arm (পরস্পর সম্পর্কিত বিষয়) All good people should live arm in arm with one another.
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Red letter day (স্মরণীয় দিন): The 16th December is a red letter day for us.