প্রত্যবেক্ষক: [Noun] Invigilator.
Related Words
প্রত্যবেক্ষক প্রত্যবেক্ষণ প্রত্যবেক্ষিত প্রত্যাকর্ষণSee Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Apply for(কারো কাছে আবেদন করা): Sumi applied to the Principal for free studentship.
Conform to (নিয়মনীতি অনুসরণ করা): The employees have to conform to a strict dress code.
Contrary to(বিপরীত, পরিপন্থী): Students should not act contrary to the rules of discipline.
Indulge in (আসক্ত): You should not indulge in social media.
Rebel against (বিদ্রোহ করা): The soldiers rebelled against the king.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
At a discount (অনাদৃত) Female education is no longer at a discount now.
Give in (বশ্যতা স্বীকার করা): We will never give in to our enemies.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Ups and downs (উত্থান পতন)- There is ups and downs in a man's life.