Sine qua non : অপরিহার্য শর্ত;
Related Words
sine qua non  sine quanon  sinequanon  See Words Also In
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Appropriate Prepositions
Bare of(অনাবৃত, স্বল্প-সজ্জা): The trees of the forest are bare of leaves.
Cause of(কারণ): Industry is the cause of your success.
Charge with(অভিযুক্ত করা): He is charged with killing.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Repentance for (অনুতাপ): He has repentance for the past.
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Idioms
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Well off (স্বচ্ছল) - Jim and Della were not well off.