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.
In the nick of time ( ঠিক সময়ে ) The school team arrived in the nick of time.
bad shoot ( অসংগত অনুমান )
By chance ( দৈবাৎ ) I met him on the way by chance.
Black sheep ( কুলাঙ্গার ) He is a black sheep in his family.