Keep mum : চুপ করে থাকা; নীরব থাকা; মৌন থাকা;
Related Words
keep in  keep mum  keep on  See Words Also In
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Appropriate Prepositions
Easy of (সরল): The teacher is easy of approach.
Full of (পরিপূর্ণ): Our Rivers are full of fishes.
Married to (বিবাহিত): Salma was married to a Govt. Officer.
Repent of (অনুতাপ করা): I repented of my past.
Thirst for (তৃষ্ণা, আকাঙ্ক্ষা): A wise man has no thirst for wealth.
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Idioms
Bear hard upon (behave rudely-নির্দয়ভাবে ব্যবহার করা - V) Never bear hard upon your servants.
Far and wide (সর্বত্র): His fame spread far and wide.
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.