plural acuities
Definition of acuity
: keenness of perception
hearing acuity mental acuity
Test Your Vocabulary
Great Words for Scrabble
-
- Which of the following Q-without-U words means the number five in cards or dice?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share acuity
Time Traveler for acuity
The first known use of acuity was circa 1549
See more words from the same year