মূলতত্ত্ব: [Noun] First principle.
Related Words
মহাসত্ত্ব  মূলতত্ত্ব  মূলমন্ত্র  মোহমন্ত্র  See Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Adept in (দক্ষ): He is adept in playing football.
Agree to(ব্যক্তি ছাড়া অন্যকিছুর সাথে একমত হওয়া): We cannot agree to your proposal.
Consolidate for (শক্তিশালী করা): The four new companies consolidated for greater efficiency.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Innocent of (নির্দোষ): The maid servant was proved innocent of the alleged theft.
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Idioms
Pick a quarrel (ঝগড়া করা)—Do not pick a quarrel.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.
To the point (সঠিক) - The boy answered the question to the point.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.
Up to (পর্যন্ত) - I have done the exercises up to page 40.