ˈ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ adjective
Etymology: high frequency
1. : occurring very frequently
drills based on the repetition of high-frequency words
2. : relating to high frequency: as
a. : involving a radio wave of high frequency — used especially of sound waves and vibrations
b. : supersonic 1