At a loss ( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.
Cut to the quick ( মর্মাহত হওয়া ) I was cut to the quick by his words.
Dead of night ( মধ্য রাত্রি ) The robbers broke into the house at dead of night.
In a fix ( মুশকিলে পতিত ) He is in a fix and does not know what to do.
Above board ( সংশয়হীন ভাবে নির্দোষ ) His activities are open and above board.
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.