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Aug 16 2019 26

Acuity is a noun that means sharpness of thought, vision or hearing.

Our word of the day means to be sharp, physically and mentally. So it makes sense that acuity would have evolved from the Latin word acurere (ah coo WHERE ay) meaning ‘to sharpen.’

After dad’s accident, we feared his damage would make him less responsive. But to our relief, he maintained a remarkable acuity.