7764 わかす 沸かす wakasu to boil something 2061
    おゆを 沸かして ください oyu wo wakashite kudasai Please boil some water.
Please heat up the water.
 
           
7771 わく 沸く、湧く waku to boil; to grow hot, to get excited 2061
    もう 沸いて いますよ moo waite imasu yo It's already boiling!  
           
      wakasu/waku Transitive Pairs