Challenge : বৈধতায় সন্দেহ প্রকাশ (করা); প্রতিদ্বতায় আহবান করা, পরিচয় দাবি করা
Related Words
call names  calling  calling on  calling up  callings  callowness  calming  celling  challenge  challenged  challenger  challenges  challenging  chilling  chillness  clanged  cleanse  coaling  culling  See Words Also In
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Cope with (এঁটে ওঠা; তাল মিলিয়ে চলা): They cannot cope with so much work.
Greed for (লোভ): He has an indomitable greed for wealth.
Sanguine of (নিশ্চিত বা আশান্বিত): Be sanguine of your success.
Senior to (বয়সে বড়): He is senior to me by two years.
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Idioms
Birds of a feather (persons of like disposition-একই পর্যায়ের লোক) Bird’s of a feather flock together.
Fish in a troubled water (এলোমেলো অবস্থার সুযোগ নেয়া): He made a lot of money by fishing in a troubled water.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.
Slow coach (অলস): You cannot expect much from a slow coach.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.