Knowhow : ব্যবহারিক জ্ঞান;
Related Words
kanoon  know  know how  know-how  knowhow  known  See Words Also In
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Appropriate Prepositions
Appoint to(নিযুক্ত করা/হওয়া): Kibria has been appointed to the post of Headmaster.
Attend on/upon (সেবা করা): We should attend on/upon the ailing patient.
Careless of(অসতর্ক): Do not be careless of your health.
Delighted at/with (আনন্দিত হওয়া): Sharmin was delighted at/with her husband’s promotion.
Satisfied with (সন্তুষ্ট): The authoress was highly satisfied with Jerry.
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Idioms
Bad book (disfavour-খারাপ নজর —n) The secretary has fallen in the bad book of the manager.
For good (চিরদিনের জন্য): He left the house for good.
Pack of lies (ডাঁহা মিথ্যা)—He told pack of lies to prove himself innocent.
Pin money (স্ত্রীর দেয়া হাত খরচ)— She saved her pin money.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.