Rigidities : কাঠিন্য; দৃটতা;
Related Words
righteous  rightist  rights  rigidities  rugosities  See Words Also In
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Appropriate Prepositions
Ascend to (আরোহণ করা): karim began to ascend to the surface of wakefulness.
Catch at(ধরা): A drowning man catches at a straw.
Delighted at/with (আনন্দিত হওয়া): Sharmin was delighted at/with her husband’s promotion.
Fed up with (বিরক্ত): He is fed up with waiting for her.
Inferior to (নীচু/হীন): He is inferior to his neighbor.
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Idioms
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Under age (অপ্রাপ্ত বয়স্ক)- He could not cast his vote because he was under age.
Up to (পর্যন্ত) - I have done the exercises up to page 40.