Heptad : সপ্তুক; সপ্তক; সাত ব্যক্তি বা বস্তুর সমষ্টি;
Related Words
heaped  heaved  hepta  heptad  See Words Also In
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Appropriate Prepositions
Abide by(মেনে চলা): We must abide by the rules of discipline.
Consist in (কোনো কিছু মধ্য বিদ্যমান থাকা): Happiness consists in contentment.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
Indebted to (ঋণী থাকা): We are indebted to the great leaders of the country for their service.
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Idioms
All in - (পরিশ্রান্ত): I was all in after the meeting.
At liberty (free-মুক্ত-adj.) They are at liberty to go anywhere.
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Without fail (অবশ্যই) - You must attend the meeting without fail.