Loud-speaker : সস্বরবর্ধক যন্ত্র,
Related Words
loud speaker  loud-speaker  loudspeaker  See Words Also In
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Appropriate Prepositions
Conceal from(লুকানো) Do not conceal anything from me.
Look for (খোঁজা): I was looking for the lost phone.
Loyal to (অনুগত): Every citizen must be loyal to the state.
Refer to (সিদ্ধান্তের জন্য প্রেরণ করা): The matter was referred to the Chairman for a decision.
Sad at (দুঃখিত): All his colleagues were very sad at his transfer from this place.
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Idioms
All at once - (হঠাৎ): I feel terribly sleepy all at once.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.
Run short (কমতি পড়া) —I ran short of money.
Weal and woe (joy and sorrow, সুখ দঃখ) —Human life is full of weal and woe.