By leaps and bounds ( অতি দ্রুতগতিতে ) The population of Bangladesh is increasing by leaps and bounds.
Cock and bull story ( গাঁজাখুরি গল্প ) Nobody will believe your cock and bull story
Household word ( সকলের পরিচিত নাম ) Mother Teresa's name has now become a household word.
At one’s wit’s end ( হতবুদ্ধি ) He was at his wit’s end and did not know what to do.
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.
Weal and woe ( সুখ-দুঃখ ) Human life is full of weal and woe.