Sound-wave : শব্দতরঙ্গ;
Related Words
sound wave  sound-wave  See Words Also In
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Appropriate Prepositions
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Authority on(বিশেষজ্ঞ পন্ডিত): Kamal was an authority on English literature.
Die of (রোগে মরা): Many people died of cholera.
Indebted to (ঋণী থাকা): We are indebted to the great leaders of the country for their service.
Take pity on (দয়া করা): Take pity on the helpless people.
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Idioms
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Rank and file (সাধারণ লোক): We should pay attention to the rank and file of the country.
Tide over (বিপদ অতিক্রম করা-overcome ): The manager tided over the situation.
To the backbone (to the core, হাড়ে হাড়ে) —The boy is wicked to the backbone.