Speak up : উচ্চকণ্ঠে বলা; চেঁচাইয়া বলা; জোরে বলা;
Related Words
speak for  speak up  speak volumes  speakup  See Words Also In
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Appropriate Prepositions
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
Noted for (বিখ্যাত): She is noted for dancing.
Refrain from (বিরত রাখা বা থাকা): I refrained him from smoking.
Substitute for (বদলে দেওয়া): This action is substitute for that.
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Idioms
ABC - (প্রাথমিক জ্ঞান): I don't know the ABC of politics.
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
Get rid of (মুক্তি পাওয়া): Try to get rid of the rogue.
Kith and kin (নিকট আত্মীয়): He has no relation with his kith and kin.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.