Echelon : পর্যায়; স্তর; ব্যূহ;
Related Words
echelon  echelons  excellent  excelling  See Words Also In
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Appropriate Prepositions
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Call in(ডাকিয়া আনা): They called in a doctor.
Composed of(তৈরী): This medicine is composed of vitamins and minerals.
Feed with (কোনো কিছু খাওয়া): They feed the cow with grass.
Look for (খোঁজা): I was looking for the lost phone.
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Idioms
A bed of roses - (সুখকর অবস্থা): Life is not a bed of roses.
All in - (পরিশ্রান্ত): I was all in after the meeting.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
Well up (সুপন্ডিত)- Dr. Shahidullah was well-up in Bengali language.