Optimise : আশাবাদী হওয়া;
Related Words
ofttimes  optimise  optimism  optimist  optimistic  optimistically  optimists  optimize  options  See Words Also In
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Appropriate Prepositions
Abstain from(বিরত থাকা): I am trying to abstain from sweets for my new diet.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Debar from (বঞ্চিত হওয়া/বাধা দেওয়া): He is debarred from getting a job.
Due to (কারণে): His absence is due to illness.
Take after (সদৃশ হওয়া, একই রকম হওয়া): The boy takes after his brother.
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Idioms
Far and wide (সর্বত্র): His fame spread far and wide.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Now and then (মাঝে মাঝে): He comes here now and then.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.
With a lavish hand (মুক্ত হস্তে)— Give away something with a lavish hand.