Helpful : সাহায্যকারী, উপকারী
Related Words
helpful  helpfulness  helpless  See Words Also In
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Appropriate Prepositions
Aim at(আঘাত করার জন্য লক্ষ্য স্থির করা): The hunter aimed at the tiger.
Cast aside (ছুঁড়ে ফেলা): As soon as they become rich they cast aside their poor friends.
Caution against(সাবধান): Take all cautions against the danger.
Consent to(মত দেওয়া): My father did not consent to the proposal of my sister’s marriage.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
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Idioms
At the top of (শীর্ষে): The boy shouted at the top of his voice.
Call in question (সন্দেহ করা): No one can call his honesty in question.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Head and ears (সম্পূর্ণরূপে): He is over head and ears in debt.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.