lì​qì

effective tool

利器 lì​qì
effective tool noun
an efficient implement, instrument, or method for achieving a specific purpose

This software is a powerful tool for improving work efficiency.

sharp weapon noun
a sharp and powerful weapon

This dagger is incredibly sharp and is indeed a powerful weapon for close combat.

talented person noun
an outstandingly capable individual or a person of great talent and utility

This man has great ambitions and overflowing talent; he is truly a great asset to the nation.

Frequency

Movie subtitles
0.800 per million appears in 0% of films
Written text
4.14 per million

Sources

Definitions
CC-CEDICT