Answer:

acuity

Answer	Crossword Clue
ACUITY	Sharpness
ACUITY	Keenness
ACUITY	Eagle eye's asset

ACUITY	Sharp-sightedness
ACUITY	Keen perception
ACUITY	Mental sharpness
ACUITY	Sharpness of perception
ACUITY	Visual sharpness

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.