READING  カ、うず
MEANING  whirlpool
JLPT level N1 (full info & stroke order)
 
Words/compounds
うずまき
whirlpool, eddy, coil
 
Example sentences
渦巻き
大きな渦巻きと急流があります。
It has a big whirlpool and a strong current.
 
Lookalikes
 
カツ、コツ、すべ-る、なめ-らか 
slippery