keenness or acuteness, esp in vision or thought
WordReference Random House Learner's Dictionary of American English © 2025
a•cu•i•ty /əˈkyuɪti/USA pronunciation
n. [uncountable]
WordReference Random House Unabridged Dictionary of American English © 2025- sharpness;
acuteness:visual acuity; mental acuity.
a•cu•i•ty
(ə kyo̅o̅′i tē),USA pronunciation n.
- sharpness;
acuteness;
keenness:acuity of vision; acuity of mind.
- Medieval Latin, Late Latin acuitās, equivalent. to Latin acu(ere) to sharpen or acū(tus) sharpened (see acute) + -itās -ity
- Old French
- late Middle English acuite 1375–1425
Collins Concise English Dictionary © HarperCollins Publishers::
'acuity' also found in these entries (note: many are not synonyms or translations):
V, v
- agility
- aptitude test
- audiometer
- dexterous
- optometry
- perspicacity
- sharp-witted
- twenty-twenty
- visual acuity
- wit