代用

N1 兼用 kenyou multi-use, combined use N1 公用 kouyou government business, public use, public expense N1 古代 kodai ancient times N1 採用 saiyou use, adopt N1 作用 sayou operation, effect, function N1 運用 unyou making use of, application, practical use N1 代る代る kawarugawaru alternately N1 使用人 shiyounin employee, servant N1 世代 sedai generation

N4 代 dai, tai / ka.waru, kawa.ru, kawa.ri, ka.wari, -gawa.ri, -ga.wari, ka.eru, yo, shiro substitute, change, convert N4 用 you / mochi.iru utilize, business, service