Quaternion : চার বস্তুর সমষ্টি; চার প্রাণীর সমষ্টি;
Related Words
quadroon  quaternary  quaternion  quatra in  quatrain  quatrains  See Words Also In
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Appropriate Prepositions
Abound in(প্রাচুর্যপূর্ণ হওয়া): Fish abounds in the pond.
Attentive to(মনোযোগী): He is attentive to his business.
Count for(গণ্য বা বিবেচিত হওয়া): There can be no lasting peace without true democracy in which the people play a part and count for something.
Rid of (মুক্তি দেওয়া): He will get rid of troubles soon.
Stare at (চাওয়া বা তাকানো): He stares at me.
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Idioms
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
Now and then (মাঝে মাঝে): He comes here now and then.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.