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
Adept in (দক্ষ): He is adept in playing football.
Appetite for(ক্ষুধা): He has no appetite for food.
Count on/upon (নির্ভর, বিশ্বাস করা): Rahim count on (upon) my help.
Effect of (প্রভাব): The effect of corruption is very harmful for our society.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
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Idioms
Acid test (অগ্নি পরীক্ষা): You must succeed in the acid test of the time you live in.45
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.