Optimise : আশাবাদী হওয়া;
Related Words
ofttimes  optimise  optimism  optimist  optimistic  optimistically  optimists  optimize  options  See Words Also In
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Appropriate Prepositions
Acceptable to(গ্রহণযোগ্য): Such behavior is just not acceptable in this school.
Attacked with(আক্রান্ত): He is attacked with …
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Meet with (হঠাৎ কোন কিছু হওয়া): Yesterday I met with an accident.
Subject to (সাপেক্ষে): The man was appointed subject to the approval of the chairman.
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Idioms
At random (indiscriminately—এলোপাথাড়ি-adv.) He talks at random like a mad man.
From hand to mouth (দিন আনে দিন খায়): The poor man live from hand to mouth.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.