By night : রাতের বেলায়;
Related Words
be naughty  benighted  by night  See Words Also In
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Appropriate Prepositions
Attentive to(মনোযোগী): He is attentive to his business.
Caution against(সাবধান): Take all cautions against the danger.
Complain to (কারো কাছে নালিশ করা): You should not complain to his parents.
Contribution to (অবদান): His invention made a major contribution to road safety.
Regret for (দুঃখ করা): We regretted for his failure.
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Idioms
Call to mind (স্মরণ করা): I cannot call to mind your cell number.
Lose one’s heart (প্রেমে পড়া) — He lost his heart to the girl.
Pin money (স্ত্রীর দেয়া হাত খরচ)— She saved her pin money.
Salt of the earth (গুরুত্বপূর্ণ ব্যক্তিবর্গ) —The salt of the earth is remembered always.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.