At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.
In vain ( বৃথা ) All his attempts were in vain.
Dead against ( তীব্র বিরোধী ) I am dead against his proposal.
Catch red handed ( হাতে নাতে ধরা ) The thief was caught red handed.
In the nick of time ( ঠিক সময়ে ) The school team arrived in the nick of time.
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.