Efficacy : ফলপ্রসূতা; কার্যক্ষমতা; নিশ্চিত ফলদানের ক্ষমতা;
Related Words
efface  efficacious  efficacy  effigy  See Words Also In
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Appropriate Prepositions
Ask about (কাউকে খোঁজ করা): Rahim asked about Karim.
Die by (দূর্ঘটনা বা অপঘাতে মরা/কোন কিছু দ্বারা মারা যাওয়া): He died by a road accident.
Heir of (উত্তরাধিকারী): He is the heir of his father.
Look after (দেখাশুনা): He looks after me.
Pleased with (সন্তুষ্ট): Shamim is pleased with all his employees.
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Idioms
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
Crying need (জরুরী): Mass education is a crying need for India.
For good (চিরদিনের জন্য): He left the house for good.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Make both ends meet (আয় ব্যয় মেলানো): I cannot make both ends meet with my small income.