Grey matter : মাথার ঘিলু; মগজ;
Related Words
grey matter  ground water  See Words Also In
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Appropriate Prepositions
Bare of(অনাবৃত, স্বল্প-সজ্জা): The trees of the forest are bare of leaves.
Born of(জন্মগ্রহণ করা): I was born of a middle class family.
Business with (ব্যবসা, কাজ): He is pleased to do business with you.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
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Idioms
At the top of (শীর্ষে): The boy shouted at the top of his voice.
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
In vogue (চালু): This custom is not in vogue at present.
In the wake of (ঠিক পরে): Police came in the wake of the accident.