স্থির তরঙ্গ: Stationary wave.
Related Words
স্থির তরঙ্গ  স্থিরচিত্ত  See Words Also In
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Appropriate Prepositions
Assure of(আশ্বাস দেওয়া): I can assure you of the Principal’s honesty.
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Deprived of (বঞ্চিত): He was deprived of education due to extreme poverty.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Married to (বিবাহিত): Salma was married to a Govt. Officer.
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Idioms
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Set out (যাত্রা করা)— I will set out in time.
To the contrary (against what some one had said, পক্ষান্তরে) —He said nothing to the contrary.
White elephant (অত্যন্ত ব্যয়সাপেক্ষ বিলাসিতা): At last the department proved to be a white elephant.