Monomaniac : বাতিকগ্রস্ত লোক;
Related Words
maniac  maniacs  manias  manic  monomaniac  mosaic  mosiac  See Words Also In
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Appropriate Prepositions
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Eager for, about (একাগ্র): The students for this school are eager for knowledge. The teacher is eager about the success of his students.
Look at (তাকানো): Students look at the blackboard.
Pity for (করুণা, সমব্যথা): I feel pity for this helpless old man.
Road to (উপায়/ রাস্তা): There is no easy road to learning.
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Idioms
All along - (সব সময়): I was present in the meeting all along.
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Fair and square (সৎ): The learned persons should be fair and square.
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.