Sound-wave : শব্দতরঙ্গ;
Related Words
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Appropriate Prepositions
Consent to(মত দেওয়া): The Prime Minister consented to the proposal.
Informed of (অবহিত): I was not informed of your misfortune.
Inquire into (খতিয়ে দেখা): The police officer will inquire into the matter.
Repentance for (অনুতাপ): He has repentance for the past.
Welcome to (স্বাগত জানানো): You are welcome to our new office.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Cut a sorry figure (খারাপ ফল করা): He cuts a sorry figure in the examination.
On the whole (মোটের ওপর): On the whole, his conduct is good.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.