1. Noun

   whip; lash; scourge

   Usually written using kana alone

   その残酷な男は犬をムチで打った。

2. stick; cane; rod; pointer

   Usually written using kana alone

3. encouragement; rebuke; spur; goad

   Usually written using kana alone

Also written 笞【むち】muchi、策【むち】muchi