Sine qua non : অপরিহার্য শর্ত;
Related Words
sine qua non  sine quanon  sinequanon  See Words Also In
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Appropriate Prepositions
Attacked with(আক্রান্ত): He is attacked with …
Charge with(অভিযুক্ত করা): He is charged with killing.
Die for (আত্নত্যাগ করা): Our Chairman died for our country.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
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Idioms
Dead language (যে ভাষা এখন আর কথ্য নয়): Sanskrit is a rich language, but it is now a dead language.
In vogue (চালু): This custom is not in vogue at present.
Silver tongue (মিষ্টভাষী)- He is a man of silver tongue.
Set out (যাত্রা করা)— I will set out in time.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.