Ventilation : বায়ুচলাচল; বায়ুচলন; বায়ুরন্ধ্র;
Related Words
ventilating  ventilation  See Words Also In
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Appropriate Prepositions
Cure of, for(রোগমুক্ত হওয়া): This man was cured of This drug is a cure for typhoid.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
Succeed in (সাফল্য লাভ করা): He succeeded in life.
Wish for (প্রত্যাশা করা): Everybody wish for happiness.
Worry about (কোনো কিছু বা কাউকে নিয়ে উদ্বিগ্ন হওয়া): Please, don’t worry about me. I will be alright.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
Bare word (শুধু মুখের কথা, স্বাক্ষী প্রমানহীন কথা-n) He believed your bare word and now he has been played false with.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Null and void (বাতিল): The deed has been null and void now.
Safe and sound (নিরাপদে)— He reached home safe and sound.