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.
host in himself ( একাই একশ )
By and by ( শীঘ্র ) He will come here by and by.
At least ( অন্ততঃ ) At least one hundred boys will come to school today.
By and large ( প্রধানতঃ ) People in our village are by and large farmers.
Do yeoman's service ( বিশেষ উপকার করা ) Raja Rammohan Roy has done yeoman's service to our country.