加速

N2 速達 sokutatsu express, special delivery N2 速力 sokuryoku speed N3 参加 sanka participation, joining N3 加減 kagen adjustment, degree, condition, moderation N3 急速 kyuusoku rapid, swift, fast N3 加える kuwaeru add, include, append N3 加わる kuwawaru join, be added, participate N3 高速 kousoku high speed, express N3 加味 kami seasoning, taking into account

N3 加 ka / kuwa.eru, kuwa.waru add, addition, increase N3 速 soku / haya.i, haya-, haya.meru, sumi.yaka quick, fast, vite