On the back of : পাছু; পিছে;
Related Words
on the back of  on the face of it  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.
Change into (পরিবর্তিত হওয়া): At what point does boiling water change into vapor.
Hatred for (ঘৃণা): I have no hatred for anyone.
Object to (প্রতিবাদ করা): Many people objected to the remarks of the leader.
Smile on/upon (অনুগ্রহ করা): Fortune smiles on/upon the brave.
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Idioms
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
In no time (শীঘ্র): He will finish the work in no time.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Tooth and nail (তীব্রভাবে): He fought tooth and nail for the sake of country.