Black board : বিদ্যালয়ে লিপির জন্য তক্তা;
Related Words
black bird  black board  blackbird  blackbirds  blackboard  See Words Also In
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Appropriate Prepositions
Easy of (সরল): The teacher is easy of approach.
Look up (ডিকশনারি থেকে শব্দার্থ খোঁজা): He is looking up a new word meaning from dictionary.
Rejoice at/in (আনন্দ করা): Everybody rejoiced at/in his success.
Sentence to, for (দন্ডাদেশ দেওয়া): He was sentenced to death for murder.
Short of (অপর্যাপ্ত): I am running short of money.
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Idioms
A bed of roses - (সুখকর অবস্থা): Life is not a bed of roses.
All along - (সব সময়): I was present in the meeting all along.
In a fix (মুশকিলে পতিত হওয়া): The man is in a fix with his new hairstyle.
Learn by heart (মুখস্থ করা)— He learnt the poem by heart.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.