Cocksure : আত্মবিশ্বাসী; সুনিশ্চিত; একেবারে নিশ্চিত;
Related Words
caesurae  chore  cock sure  cock-sure  cockcrow  cocker  cockier  cocksure  core  cosharer  courier  crore  cure  curie  See Words Also In
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Appropriate Prepositions
Ask for (কোনো কিছু চাওয়া): Do not ask him for any help because he doesn’t like to help anyone.
Attain to (লাভ করা): He will not attain to his objective so soon.
Burst out a laughter(হাসিতে ফেটে পড়া) He bursts out a laughter.
Contemporary of (সমসাময়িক): William Wordsworth was a contemporary for greater efficiency.
Hit upon (পরিকল্পনা নেয়া): Rahim hit upon a new plan.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Now and then (মাঝে মাঝে): He comes here now and then.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.