実用
じつよう · jitsuyou · JLPT N2 · noun
use
🔧 実 (real, actual) + 用 (use) = real-world use, i.e. practical use
実 means real or actual, and 用 means use. Put together, 実用 is use in actual practice, which is the same as utility. Say jitsu (real) then you (use).
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.