agudizar1

¹ = sharpen, stoke.

Ex. Instructors may sharpen a difference of opinion between two students and also may tactfully cut short long-winded contributions in a debate.

Ex. The media have regularly stoked public feelings of shame by affirming that English football fans are synonymous with hooliganism, overlooking the fact that not all fans are 'hooligans'.

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* la necesidad agudiza el ingenio = necessity mothers invention, necessity is the mother of invention.