Underpin : জোরালো করা; সত্যতা প্রতিপন্ন করা; সমর্থন করা; দেওয়াল ইত্যাদিতে ঠেকনো লাগানো;
Related Words
under pin  underpants  underpin  See Words Also In
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Appropriate Prepositions
Abstain from(বিরত থাকা): I am trying to abstain from sweets for my new diet.
Careless of(অসতর্ক): Do not be careless of your health.
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Good for, at (ভাল): This man is good for nothing. He is good at English.
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Idioms
After all - (সব কথার পরেও): I rang and told her I couldn't come after all.
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.