Wavelength : তরঙ্গদৈর্ঘ্য;
Related Words
wave length  wavelength  wavelengths  See Words Also In
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Appropriate Prepositions
Answer for(কোনো কারনে জবাবদিহি করা): He will have to answer for his misdeeds.
Aptitude for(স্বাভাবিক দক্ষতা, যোগ্যতা): He has no aptitude for public service.
Despair of (নিরাশ হওয়া): Do not despair of further improvement.
Innocent of (নির্দোষ): The maid servant was proved innocent of the alleged theft.
Look for (খোঁজা): I was looking for the lost phone.
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Idioms
At every step (প্রতি পদে পদে): There are dangers at every step in our life and yet we want to live.
Eat humble pie (অপমান হজম করে ক্ষমা চাওয়া): The manager had to eat humble pie before his employees.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
In cold blood (ঠান্ডা মাথায়): They committed this murder in cold blood.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.