To confirm : নিশ্চিত করা; প্রতিপাদন করা; দৃঢ় করা; পাকা করা; অনুমোদন করা; জোর দিয়ে বলা;
Related Words
to confirm  to conform  See Words Also In
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Appropriate Prepositions
Convinced of (আশ্বস্ত): You are convinced of his product.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
Remedy for (প্রতিকার): There is no remedy for cancer.
Run over (চাপা পড়া): The man was run over by a truck.
Worry about (কোনো কিছু বা কাউকে নিয়ে উদ্বিগ্ন হওয়া): Please, don’t worry about me. I will be alright.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.
Up and doing (উদ্যোগী): Be up and doing and then you will succeed in your life.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.