Ratchet : র্যাচিট; দান্তাল চাকা-বিশেষ; ছিটকিনি-লাগানো একধরনের দাঁতওয়ালা চাকা যা কেবল একদিকেই ঘোরে;
Related Words
rat catchers  ratcatcher  ratchet  ratchets  raticide  retched  retouched  See Words Also In
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Appropriate Prepositions
Angry with(কারো সাথে ক্রুদ্ধ হওয়া): The teacher was very angry with the students.
Apology to (কারো কাছে ক্ষমা চাওয়া): Rakib should ask apology to her.
Breakdown of (বিস্তারিত): Here is statistical breakdown of data.
Due to (কারণে): His absence is due to illness.
Inferior to (নীচু/হীন): He is inferior to his neighbor.
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Idioms
At a snail's pace (very slowly – খুব ধীর গতিতে) The economy of Bangladesh is growing at a snail’s pace.
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.