Gainful : লাভজনক; সুবিধাজনক; অর্থকর
Related Words
gainable  gainful  See Words Also In
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Appropriate Prepositions
Adjacent to (সন্নিহিত): His house was adjacent to the bridge.
Adjacent to(সংলগ্ন): The Post Office is adjacent to my house.
Cure of, for(রোগমুক্ত হওয়া): This man was cured of This drug is a cure for typhoid.
Detrimental to (অপকারী): Smoking is detrimental to health.
Identical with (একই ধরণের): You are identical with your sister.
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Idioms
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.
Well-to-do (সঙ্গতিপূর্ণ) - He was not born in a well-to-do family.