Triweekly : সপ্তাহে তিনবার ঘটিতেছে এমন; ত্রৈসাপ্তাহিক; ত্রি-সাপ্তাহিক;
Related Words
tiercel  treacly  trickle  triweekly  See Words Also In
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Appropriate Prepositions
Abide by(মেনে চলা): We must abide by the rules of discipline.
Akin to(সমজাতীয়): These are akin to one another.
Defend against (রক্ষা করা): We will defend our country against all enemies.
Inquire of, about, into, after (অনুসন্ধান করা): Roma inquired of me about my father’s health. The pope will inquire into the cause of fire. Mehjabin inquired after her friends.
Perfect for (সঠিক, মানানসই): The new book is perfect for you.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
To the backbone (হাড়ে হাড়ে): I know this boy to the backbone.