to hold the key to something

āχāĻ‚āϰ⧇āϜāĻŋāϤ⧇ "hold the key to something "āĻāϰ āϏāĻ‚āĻœā§āĻžāĻž āĻ“ āĻ…āĻ°ā§āĻĨ

01

to be the determining factor of something, particularly by making its occurrence or success possible

to [hold] the key to {sth} definition and meaning
Idiom
āωāĻĻāĻžāĻšāϰāĻŖ
The historian's research holds the key to understanding the origins of ancient civilization.
LanGeek
āĻ…ā§āϝāĻžāĻĒ āĻĄāĻžāωāύāϞ⧋āĻĄ āĻ•āϰ⧁āύ