Retroact : প্রতিক্রিয়া ঘটা; পিছন দিকে ক্রিয়াশীল হওয়া;
Related Words
re tract  redirect  retraced  retract  retractable  retracted  retractile  retracting  retraction  retractions  retractive  retractor  retracts  retroact  retroaction  retrorocket  See Words Also In
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Appropriate Prepositions
Add to (বৃদ্ধি করা, যোগ করা): The doll-dance in the exhibition added to our pleasure.
Busy with(ব্যস্ত থাকা): Rahim is now busy with her homework.
Catch at(ধরা): A drowning man catches at a straw.
Derive from (উৎসারিত হওয়া): The one has been derived from the poem.
Fed up with (বিরক্ত): He is fed up with waiting for her.
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Idioms
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
Brown study (day dream-দিবাস্বপ্ন -n) The woman is absorbed in a brown study.
Bare word (শুধু মুখের কথা, স্বাক্ষী প্রমানহীন কথা-n) He believed your bare word and now he has been played false with.
Call to mind (স্মরণ করা): I cannot call to mind your cell number.
Take into account (বিবেচনা করা): Your activities should be taken into account.