ABC ( প্রাথমিক জ্ঞান ) Everybody must know at least the ABC of religion.
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.
Bring to book ( শাস্তি দেওয়া ) He should be brought to book for his misconduct.
A bed of roses thorns ( কন্টকময় জীবন ) Life is nothing but a bed of roses.
At least ( অন্ততঃ ) At least one hundred boys will come to school today.
Kith and kin ( নিকট আত্মীয় ) He has no good relationship with his kith and kin.