স্থির তরঙ্গ: Stationary wave.
Related Words
স্থির তরঙ্গ স্থিরচিত্তSee Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Akin to(সমজাতীয়): These are akin to one another.
Answerable to (কারো কাছে জবাবদিহিতা করা): He is not answerable to anybody for his mistake.
Bad at (অদক্ষ): He is not bad at English.
Count upon(নির্ভর করা): He always counts upon your help for this work.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
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Idioms
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
Fair play (প্রতারণা বিহীন নীতি বা কাজ): I believe in the practice of fair play in my business.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
Red tape (official formalities, অফিসের কাজ)— You would not believe the red tape involved in getting the required permits.
Set free (মুক্ত করা): The prisoners were set free.