Cryptography : সংকেতলিপি রচনার বিদ্যা;
Related Words
cryptograph  cryptographer  cryptography  See Words Also In
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Appropriate Prepositions
Breakdown of (বিস্তারিত): Here is statistical breakdown of data.
Curse for (অভিশাপ দেয়া): If he ever mistreats my parents, I will certainly curse him for it.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Famous for (বিখ্যাত): Smith is famous for his wisdom.
Rebel against (বিদ্রোহ করা): The soldiers rebelled against the king.
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Idioms
At the latest (খুব বেশি দেরী হলে) He will arrive here at 5 p. m. at the latest.
Back and bally (জীবিকা, ভরণ পোষণ—n) Who will provide the increasing population with the required back and bally?
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
Safe and sound (নিরাপদে)— He reached home safe and sound.