Cog wheel : দন্তযুক্ত চক্র;
Related Words
chessel  cog wheel  cog-wheel  cow whale  cowl  See Words Also In
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Appropriate Prepositions
Affectionate to(স্নেহশীল): He is very affectionate to his baby.
Dedicate to (উৎসর্গ করা): His pfe is dedicated to the welfare of the country.
Desire for (কামনা): He has no desire for fame.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
Work for (কারো জন্য কাজ করা): She works for a construction company.
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Idioms
At the latest (খুব বেশি দেরী হলে) He will arrive here at 5 p. m. at the latest.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Out of date (সেকেলে): This fashion is out of date.
Tooth and nail (তীব্রভাবে): He fought tooth and nail for the sake of country.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.