a piece of cake ( খুবই সহজ ) This assignment is a piece of cake
All at once ( হঠাৎ ) All at once a tiger came out of the forest.
At a loss ( হতবু্দ্ধি ; কিংকর্তব্যবিমূঢ় ) He was at a loss and did not know what to do.
At home ( দক্ষ ) He is at home in mathematics.
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.
Above all ( প্রধানত ; সর্বোপরি ) We should be kind, polite, and above all honest.
