Unauthorized : অননুমত, উপযুক্ত ক্ষমতাপ্রাপ্ত নয় এমন, অনধিকারী;
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Appropriate Prepositions
Consolidate for (শক্তিশালী করা): The four new companies consolidated for greater efficiency.
Depend upon (নিশ্চিত থাকা, আস্থা রাখা): Sumi depended upon his word.
Desist from (বিরত থাকা): She desisted from making this.
Match for (প্রতিদ্বন্দ্বী): He is no match for me.
Refer to (সিদ্ধান্তের জন্য প্রেরণ করা): The matter was referred to the Chairman for a decision.
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Idioms
From hand to mouth (দিন আনে দিন খায়): The poor man live from hand to mouth.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
To play on a fiddle (অনর্থক সময় নষ্ট করা - To waste time)-He played on a fiddle by nature.
Swan-song (অন্তিম গীত, শেষ কর্ম): This writing is the swan song of Kazi Nazrul islam.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.