Fire alarm : স্বয়ংক্রিয় অগ্নি সংকেত ব্যবস্থা;
Related Words
fire alarm  fire-alarm  See Words Also In
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Appropriate Prepositions
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Care of(যত্ন নেওয়া): You should take care of your health.
Derive from (উৎসারিত হওয়া): The one has been derived from the poem.
Devoid of (বিহীন/বর্জিত): He is devoid of common sense.
Repentance for (অনুতাপ): He has repentance for the past.
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Idioms
Dead against (তীব্র বিরোধী - strongly opposed to): I am dead against corruption.
Easy and free (অমায়িক): The boy is easy and free, so he has many friends.
Lose one’s heart (প্রেমে পড়া) — He lost his heart to the girl.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.
Turn a deaf ear to (pay no attention, প্রত্যাখান করা) —He turned a deaf ear to my proposal.