প্রগাঢ় বিদ্যা: Profound learning or scholarship.
Related Words
প্রগাঢ় বিদ্যা  প্রাণিবিদ্যা  প্রাণী বিদ্যা  প্রাণীবিদ্যা  See Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
Apart from(ছাড়া, ব্যতীত, দূরে): They pave apart from each other.
Averse to (বিমুখ): Rahim was averse of your various problems.
Dull at (অপ্টু/কাঁচা): He is dull at mathematics.
Hostile to (বিরোধী বা বিরূপ ভাবাপন্ন): Nobody is hostile to you.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
Bring to book (reproach-Start- ভর্ৎসনা করা) The father brought his son to book for his failure in the exam.
Lame excuse (বাজে ওজর): The lame excuse will not do.
To the utmost (যথাসাধ্য) - I tried to the utmost of my ability to have a job.