Plano concave : সমাবতল;
Related Words
plano concave  plano-concave  See Words Also In
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Appropriate Prepositions
Apologize to (ক্ষমা প্রার্থনা করা, দুঃখসহ ত্রুটি স্বীকার করা): The student apologized to the Principal for adopting unfair means in the examination.
Apply for(কারো কাছে আবেদন করা): Sumi applied to the Principal for free studentship.
Assure of(আশ্বাস দেওয়া): I can assure you of the Principal’s honesty.
Detrimental to (অপকারী): Smoking is detrimental to health.
Monument to (স্মৃতিসৌধ): The monument to your right is a popular tourist attraction.
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Idioms
At times (মাঝে মাঝে): He at times comes here.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
In vogue (চালু): This custom is not in vogue at present.
Kith and kin (নিকট আত্মীয়): He has no relation with his kith and kin.
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.