Specialise : বিশেষজ্ঞ হত্তয়া;
Related Words
special ization  specialisation  specialise  specialised  specialises  specialising  specialism  specialist  specialists  specialization  specialize  specialized  specializes  specializing  speckles  speckless  See Words Also In
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Appropriate Prepositions
Abide in(বাস করা): I abide in Dhaka with my family.
Beg for(অনুরোধ করা): Maria begged the Superintendent for a seat in the school hostel.
Enter into (আলোচনা করতে আরম্ভ করা): Let’s not enter into details at this stage.
Identical with (একই ধরণের): You are identical with your sister.
Look at (তাকানো): Students look at the blackboard.
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Idioms
As a whole (মোটের উপর, সম্পূর্ন এক মনে করে-adv.) Look at life as a whole and you will see that it is meaningful.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
Let loose (বল্গাহীনভাবে ছেড়ে দেয়া): He let his horse loose in the field.
Man of straw (অপদার্থ): We do not care for a man of straw like you.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.