By leaps and bounds( অতি দ্রুতগতিতে ) The population of Bangladesh is increasing by leaps and bounds.
Apple of discord( বিবাদেয় বিষয় ) The paternal property has become an apple of discord between the two brothers.
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.
know from a bare hint( এক আঁচরেই বোঝা )
At least( অন্ততঃ ) At least one hundred boys will come to school today.