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
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Creep up (বৃদ্ধি পাওয়া): The prices of are creeping up day by day.
Due to (কারণে): His absence is due to illness.
Look after (দেখাশুনা): He looks after me.
Look at (তাকানো): Students look at the blackboard.
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Idioms
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Laughing stock (হাসির পাত্র)— He is a laughing stock to all.
Run high (বেড়ে যাওয়া) —The price of everything has run high.
To meet trouble half-way (পুরোপুরি মোকাবেলার আগেই হাল ছেড়ে দেয়া): He met trouble half way after getting the instructions.
Widow’s mite (দরিদ্রের ক্ষুদ্র দান): A windows mite is no less important than a large contribution of a rich man.