noun
snowball
A ball made of snow, typically for throwing or building snowmen.
子供たちが雪玉を投げ合って遊んでいる。
The children are playing by throwing snowballs at each other.
大きな雪玉を転がして雪だるまを作った。
We rolled a big snowball and made a snowman.
Compound of 雪 (yuki, 'snow') and 玉 (tama, 'ball').