降下

Verb

 * 1) to fall; to descend; to drop

Etymology
/kauka/ → /kɔːka/ → /koːka/.

Noun

 * 1) descent

Interjection

 * 1) jump! (command when parachuting)

Verb

 * 1) to fall, to descend
 * 2) to drop, especially for the temperature to drop