Keen : ব্যগ্র; তীক্ষ্ন; ধারাল; সুক্ষণ; প্রগাঢ়
Related Words
keen  ken  knee  kneen  See Words Also In
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Appropriate Prepositions
Bar to(বাধা): Poverty is not a bar to happiness.
Bound for(প্রস্তুত থাকা): Although we can see that it is bound for failure, it is fascinating to follow its journey.
Hunger for (আকাঙ্কা): The teacher has a great hunger for knowledge.
Monument to (স্মৃতিসৌধ): The monument to your right is a popular tourist attraction.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
Call to mind (স্মরণ করা): I cannot call to mind your cell number.
Dead of night (মধ্যরাত্রি): The robbers broke into the house at dead of night.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.