Grey matter : মাথার ঘিলু; মগজ;
Related Words
grey matter  ground water  See Words Also In
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Appropriate Prepositions
Appetite for(ক্ষুধা): He has no appetite for food.
Deprived of (বঞ্চিত): He was deprived of education due to extreme poverty.
Dressed in (সজ্জিত, পরিহিত): The girl was dressed in silk.
Entrust to (কাউকে কোনো কিছু বিশ্বাস করে দেওয়া): He entrusted the thing to me.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
Hue and cry (শোরগোল): The villagers raised a hue and cry to see the thief.
Silver tongue (মিষ্টভাষী)- He is a man of silver tongue.
See to (বিবেচনা করা)— Can you see to it that everyone gets a copy of this memo?
Ups and downs (উত্থান পতন)- There is ups and downs in a man's life.
White elephant (অত্যন্ত ব্যয়সাপেক্ষ বিলাসিতা): At last the department proved to be a white elephant.