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
Adept in (দক্ষ): He is adept in playing football.
Adhere to (লেগে থাকা, অটল থাকা): You should adhere to your principal.
Admit of(স্থান করা, সুযোগপ্রাপ্ত হওয়া): His offence admits of no explanation.
Look at (তাকানো): Students look at the blackboard.
Rebel against (বিদ্রোহ করা): The soldiers rebelled against the king.
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Idioms
Cock and bull story (আষাঢ়ে গল্প): You must be ashamed of your cock and bull story.
Flesh and blood (রক্তমাংসের শরীর): She's my own flesh and blood; I can't believe she treated me that way!
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.
Tooth and nail (তীব্রভাবে): He fought tooth and nail for the sake of country.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.