Sigma : গ্রীক বর্ণমালার অষ্টাদশ অক্ষর;
Related Words
siam sigma sign sima simia simian skim swimSee Words Also In
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Appropriate Prepositions
Break in (কথার মাঝে কথা বলা): As she was talking, he suddenly broke in, saying, ‘that’s a rat!’
Concentrate on(কেন্দ্রীভূত করা): Try to concentrate your attention on your studies.
Independent of (স্বাধীন): They are independent of my health.
Married to (বিবাহিত): Salma was married to a Govt. Officer.
Quarrel with (ঝগড়া করা): Some girls quarreled with one another.
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Idioms
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Weal and woe (সুখ-দুঃখ): Human life is full of weal and woe.
Widow’s mite (দরিদ্রের ক্ষুদ্র দান): A windows mite is no less important than a large contribution of a rich man.