In validity : দুর্বলতা; অকার্যকরতা;
Related Words
immovability  in validity  inability  invalid  invalidate  invalidated  invalidating  invalidism  invalidity  See Words Also In
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Appropriate Prepositions
Admit to(ভর্তি করা): The boy was admitted to class Nine.
Bark at(ঘেউ ঘেউ করা): The dog is barking at the strange woman.
Call in(ডাকিয়া আনা): They called in a doctor.
Compete with(প্রতিযোগিতা করা): He does not pke to compete with
Suffer from (অসুখে ভোগা, কষ্ট পাওয়া): He has been suffering from fever for last three days.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Dead language (যে ভাষা এখন আর কথ্য নয়): Sanskrit is a rich language, but it is now a dead language.
In a fix (মুশকিলে পতিত হওয়া): The man is in a fix with his new hairstyle.
In the long run (পরিণামে): You will have to suffer in the long run.
Weal and woe (joy and sorrow, সুখ দঃখ) —Human life is full of weal and woe.