Arch enemy : প্রধান শত্রু; শয়তান;
Related Words
arcane  arch angel  arch enemy  arch-enemy  archaean  archangel  archenemy  See Words Also In
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Appropriate Prepositions
Adhere to (লেগে থাকা, অটল থাকা): You should adhere to your principal.
Argue against (বিপক্ষে বলা): She argued against the bill.
Die by (দূর্ঘটনা বা অপঘাতে মরা/কোন কিছু দ্বারা মারা যাওয়া): He died by a road accident.
Remind of (স্মরণ করিয়ে দেওয়া): He reminded me of his request to lend him some money.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
Crying need (জরুরী): Mass education is a crying need for India.
Hard nut to crack (কঠিন সমস্যা): The problem of adult education is really hard nut to crack.
Make both ends meet (আয় ব্যয় মেলানো): I cannot make both ends meet with my small income.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.