___
___ 用 [use]
is in  ___
On-reading: ヨウ as in 用法 yōhō ___
YŌ mochi(iru) used for | service 
-用 -yō = "usage" suffix  
用具 yōgu equipment  
私用 shiyō private use  
公用 kōyō official use 公 [public] 
用心 yōjin caution | precaution 心 [heart]