At once finger ends( নখদর্পণে ) All these facts are at his finger ends.
At all( আদৌ ) He does not know French at all.
Dead of night( মধ্য রাত্রি ) The robbers broke into the house at dead of night.
A rainy day( দুর্দিন ) Everybody should save something for rainy day.
All at once( হঠাৎ ) All at once a tiger came out of the forest.
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.
