Speechless : নির্বাক; বাকশক্তিহীন;
Related Words
spaceless  specialises  specialists  specializes  speck less  speckles  speckless  speech less  speechless  speechlessness  See Words Also In
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Appropriate Prepositions
Adequate to(সমানুপাতিক): The salary, he gets, is not adequate to the volume of work he has to do.
Annoyed at(ব্যক্তি ছাড়া অন্যকিছুর প্রতি বিরক্ত): They were annoyed at his rough behavior.
Close to(নিকটে): Our College is close to the Post Office.
Convert to(দীক্ষিত): Tom is converted to another religion.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
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Idioms
In no time (শীঘ্র): He will finish the work in no time.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Three score (ষাট): He is happy as his brother got three score.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.
Well up (সুপন্ডিত)- Dr. Shahidullah was well-up in Bengali language.