efficacious, effectiveness; to toil, to serve in the army · · · efficacious, effectiveness; to toil, to serve in the army · · Code (Short Name / Abbr) efficacious, effectiveness; to toil, to serve in the army · · Long Name 1 · · Number of Characters Definition · · Property Characters · 効 cjk unified ideograph | efficacious, effectiveness; to to... U+52B9