A blessing in disguise( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
By leaps and bounds( অতি দ্রুতগতিতে ) The population of Bangladesh is increasing by leaps and bounds.
breathe out( নিঃশ্বাস ত্যাগ করা ) At last, he breathed his last breath out, and that was the end.
By chance( দৈবাৎ ) I met him on the way by chance.
Cock and bull story( গাঁজাখুরি গল্প ) Nobody will believe your cock and bull story
Dead against( তীব্র বিরোধী ) I am dead against his proposal.