Cog wheel : দন্তযুক্ত চক্র;
Related Words
chessel  cog wheel  cog-wheel  cow whale  cowl  See Words Also In
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Appropriate Prepositions
Attest to(প্রত্যয়ন করা): I like to attest to your ability.
Bare of(অনাবৃত, স্বল্প-সজ্জা): The trees of the forest are bare of leaves.
Care for(গ্রাহ্য করা): I do not care for you.
Die of, for, from (মারা যাওয়া): He died of cholera. He died for his country. He died from an injury.
Senior to (বয়সে বড়): He is senior to me by two years.
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Idioms
Back and bally (জীবিকা, ভরণ পোষণ—n) Who will provide the increasing population with the required back and bally?
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.
Make both ends meet (আয় ব্যয় মেলানো): I cannot make both ends meet with my small income.
Through thick and thin (through all difficulties, সমস্ত সমস্যার মধ্যে)-Ruma followed her husband through thick and thin.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.