Unbolt : খিল খোলা, খোলা, বন্ধনমুক্ত করা;
Related Words
un fold  unboiled  unbolt  unbolted  unfelt  unfold  unfolds  unpolluted  See Words Also In
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Appropriate Prepositions
Adapt for (উপযোগী করে নেওয়া): This book has been adapted for the children.
Appear at/in(উপস্থিত হওয়া): I should appear at/in the exam hall in time.
Burst out a laughter(হাসিতে ফেটে পড়া) He bursts out a laughter.
Contribution to (অবদান): His invention made a major contribution to road safety.
Convenient to(সুবিধাজনক): The work is convenient to your nature.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Out of temper (ক্রুদ্ধ): The teacher is out temper to see the overall results.
Pass away (মারা যাওয়া)— He passed away last night.
Riding for a fall (বেপরোয়াভাবে কাজ করা- to act recklessly): He rides for a fall in the election.