Concentric : এককেন্দ্রিক, সমকেন্দ্র;
Related Words
concentric  concentrically  concentricity  See Words Also In
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Appropriate Prepositions
Absorbed in(মগ্ন): I am absorbed in my study.
Answer for(কোনো কারনে জবাবদিহি করা): He will have to answer for his misdeeds.
Apology to (কারো কাছে ক্ষমা চাওয়া): Rakib should ask apology to her.
Competent for(যোগ্য): He is not competent for the post.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
Cock and bull story (আষাঢ়ে গল্প): You must be ashamed of your cock and bull story.
Out of date (সেকেলে): This fashion is out of date.
To play on a fiddle (অনর্থক সময় নষ্ট করা - To waste time)-He played on a fiddle by nature.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.
To the backbone (to the core, হাড়ে হাড়ে) —The boy is wicked to the backbone.