Cog wheel : দন্তযুক্ত চক্র;
Related Words
chessel  cog wheel  cog-wheel  cow whale  cowl  See Words Also In
1.Google-Translator 2.Dictionary.com 3.Merriam-Webster 4.Wikipedia 5.Thesaurus.com
Appropriate Prepositions
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Bound for(প্রস্তুত থাকা): Although we can see that it is bound for failure, it is fascinating to follow its journey.
Busy with(ব্যস্ত থাকা): Rahim is now busy with her homework.
Careful of(যত্নশীল থাকা): Sadia is careful of her health.
Shout at (চিৎকার করে ডাকা): Do not shout at your parents.
Browse All Appropriate Prepositions
Idioms
At a snail's pace (very slowly – খুব ধীর গতিতে) The economy of Bangladesh is growing at a snail’s pace.
At home (proficient in — দক্ষ) The students of Bangladesh should be at home in Bangla.
Bad bargain (purchasing at a high price-বেশি দামে কেনা-n) You had a bad bargain of the watch I see.
On the whole (মোটের ওপর): On the whole, his conduct is good.
To the brim (কানায় কানায়) - The river was full to the brim.