Useful : প্রয়োজনীয় ; দরকারী;
Related Words
useable  useful  usefully  usefulness  See Words Also In
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Appropriate Prepositions
Argue against (বিপক্ষে বলা): She argued against the bill.
Argue with, about(কথা কাটাকাটি করা): They always argue with me about tiny matter.
Comply with(মেনে নেওয়া): The clerks must comply with the orders of their officer.
Crave for(আকাঙ্ক্ষা করা): Everyone craves for care.
Deal with (কারো সাথে ব্যবহার বা আচরণ করা): Shahid can deal well with the customers.
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Idioms
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Back and forth (এদিক ওদিক) The mad man was running back and forth in the hospital.
Fish in a troubled water (এলোমেলো অবস্থার সুযোগ নেয়া): He made a lot of money by fishing in a troubled water.
Null and void (বাতিল): The deed has been null and void now.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.