救援
きゅうえん · kyuuen · JLPT N1 · noun
rescue
🛟 救 save + 援 aid = rescue plus aid, so it means relief or reinforcements
救 means save someone from danger; 援 means extend a hand to support. Together they cover pulling someone out and sending backup, which is why the word spans relief, rescue, and reinforcements.
救 — 求 (seek/phonetic) + 攵 (strike/action)
A semantic-phonetic compound. The right side 攵 (a hand holding a stick) gives the action sense of intervening or stopping, while 求 supplies the sound 'jiu'. Originally meaning to halt or stop something bad, it extended to 'rescue, save, aid'.