In lieu of( পরিবর্তে ) Give me this pen in lieu of that.
At one’s own sweet will( খুশি মতো ) He still does it at his own sweet will.
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 force( বলবৎ ) This law is in force now.
In vain( বৃথা ) All his attempts were in vain.
Household word( সকলের পরিচিত নাম ) Mother Teresa's name has now become a household word.
