Bosom friend ( অন্তরঙ্গ বন্ধু ) Rifat is my bosom friend.
All on a sudden ( হঠাৎ ) All on a sudden a tiger came out of the bush.
A bolt from the blue ( সম্পূর্ন অপ্রত্যাশিত ) The news of his father's death came to him as a bolt from the blue.
Breathe one's last ( মারা যাওয়া ) The old man breathed his last on Sunday last.
Far and wide ( সর্বত্র ) His fame as a scholar spread far and wide
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.