- a tapering point
- insightfulness: shrewdness shown by keen insight
- quickness of perception or discernment; penetration of mind; the faculty of nice discrimination
- (n.) keen insight (Because of his mathematical acumen, Larry was able to figure out in minutes problems that took other students hours.)
- (n) - quick insight; accurate knowledge
- (n) mental keenness and acuteness; discernment
- Keenness of intellect, judgment or insight.
- The gradually tapering narrow point of an acuminate leaf.