জলের খরতা: Hardness of water.
Related Words
জন্ম দাতা  জরির ফিতা  জলের খরতা  জলের ছিটা  জলের ডোবা  See Words Also In
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Appropriate Prepositions
Adorn with(সাজানো/সজ্জিত করা): Adorn the car with flowers.
Affectionate to(স্নেহশীল): He is very affectionate to his baby.
Argue against (বিপক্ষে বলা): She argued against the bill.
Effect of (প্রভাব): The effect of corruption is very harmful for our society.
With a view to (উদ্দেশ্য): I went to hospital with a view to seeing you.
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Idioms
At home (proficient in — দক্ষ) The students of Bangladesh should be at home in Bangla.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
In full swing (পুরোদমে): The school is in full swing after the vacation.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.