Laughing gas : নাইট্রাস অক্সাইড;
Related Words
lacunas  lagging  lashing  lashings  laughing  laughing gas  laughing stock  laughingly  laughingstock  looking glass  lugging  See Words Also In
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Appropriate Prepositions
Abound in(প্রাচুর্যপূর্ণ হওয়া): Fish abounds in the pond.
Consist in (কোনো কিছু মধ্য বিদ্যমান থাকা): Happiness consists in contentment.
Convinced of (আশ্বস্ত): You are convinced of his product.
Eager for, about (একাগ্র): The students for this school are eager for knowledge. The teacher is eager about the success of his students.
Senior to (বয়সে বড়): He is senior to me by two years.
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Idioms
From cradle to grave (দোলনা থেকে কবর পর্যন্ত): Everyone has to learn from cradle to grave.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.
Up-to-date (আধুনিক) - Now-a-days ladies are very up to date.