採用
さいよう · saiyou · JLPT N1 · noun
use
🔧 採 = pick + 用 = use: pick a thing out, then put it to use (adopt it)
Companies use 採用 for hiring: they pick a candidate, then put that person to use. The same sense covers adopting a policy or method.
用 — pictograph of a bucket or wooden pail
用 originally depicted a bucket or container, possibly a sacrificial vessel made of wood. Over time it was borrowed to mean 'to use' or 'employ,' losing its concrete object sense. The modern meaning 'use' has been standard since early classical Chinese.