Orthogonal : লম্ব; সমকোণীয়;
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Appropriate Prepositions
Inferior to (নীচু/হীন): He is inferior to his neighbor.
Loyal to (অনুগত): Every citizen must be loyal to the state.
Match for (প্রতিদ্বন্দ্বী): He is no match for me.
Stick to (দৃঢ়ভাবে লেগে থাকা): We should always stick to our decisions.
Taste of (স্বাদ; অভিজ্ঞতা): They have had some taste of problems.
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Idioms
At the latest (খুব বেশি দেরী হলে) He will arrive here at 5 p. m. at the latest.
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
Out of sorts (সামান্য অসুস্থ): The baby is out of sorts after playing.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.