IPA: /ˌpɜːrspɪˈkæsɪti/
KK: /pɜrspɪˈkæsɪti/
The ability to notice and understand things quickly and accurately.
Her perspicacity in analyzing the situation helped the team make better decisions.
Perspicacity is formed from "perspicax" (meaning clear-sighted or having keen vision) and the suffix "-ity" (meaning the state or quality of). The word describes the quality of having a keen insight or understanding.
Think of someone who has 'clear sight' ('perspicax') and possesses a special quality ('-ity') of understanding things deeply. This helps you remember that perspicacity means having sharp insight.