Hard and fast : বাঁধা-ধরা; অপরিবর্তনীয়ভাবে বিধিবদ্ধ; বাঁধাধরা;
Related Words
hard and fast  hard and fast rules  See Words Also In
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Appropriate Prepositions
Careless of(অসতর্ক): Do not be careless of your health.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Fond of (প্রিয়/অনুরাগী): Children are fond of sweets.
Free from (মুক্ত): He is now free from danger.
Thirst for (তৃষ্ণা, আকাঙ্ক্ষা): A wise man has no thirst for wealth.
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Idioms
Bear (a) grudge (bear hostility to— শত্রুতা বা বিদ্বেষ পোষন করা—V) We should not bear (a) grudge against our brethren.
Dead against (তীব্র বিরোধী - strongly opposed to): I am dead against corruption.
Foul play (অসদাচারণ করা): We feared that he had met with foul play.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
To the point (সঠিক) - The boy answered the question to the point.