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.
be on ones back ( একেবারে কুপোকাত )
In vogue ( চালু ) This custom is not in vogue now.
By far ( সর্বাংশে ) He is by far the best boy in the class.
At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.