Ruthless : নিষ্ঠুর, নির্দয়;
Related Words
rattles  roadless  rootless  ruthless  See Words Also In
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Appropriate Prepositions
Abide by(মেনে চলা): We must abide by the rules of discipline.
Aim at(আঘাত করার জন্য লক্ষ্য স্থির করা): The hunter aimed at the tiger.
Congratulate on(অভিনন্দন জানানো): They congratulated me on my brilliant success.
Delegate to (প্রতিনিধি): Nazrul welcomed the delegates to the new conference.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
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Idioms
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Call to mind (স্মরণ করা): I cannot call to mind your cell number.
Kith and kin (নিকট আত্মীয়): He has no relation with his kith and kin.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.
Sheet anchor (শেষ আশ্রয়; প্রধান অবলম্বন; আসল খুঁটি)— This small piece of land is his sheet anchor.