All at once meaning in Bengali? All at once idiom এর বাংলা অর্থ কি? All at once = হঠাৎ এবং অপ্রত্যাশিতভাবে, আচমকা, আকস্মিক( suddenly and unexpectedly, Suddenly) Some sentences using the idiom “All at once”: She felt dizzy all at once. All at once, the gate opened. Sabrina felt afraid all at once. He always…