A1
a round object that you throw, kick, or hit in a game, or something with this shape
Dictionary examples:
The dog ate my homework ball. (0.0)
I sleep with my lucky ball. (0.0)
My cat thinks it's a ball. (0.0)
Catch the ball! Not my head! (0.0)
The ball flew. I ran. Ouch! (0.0)
I kicked the ball. It's gone! (0.0)
a beach/golf/tennis ball (19.5)
a ball of wool (20.1)
She threw a ball at me and I caught it. (31.8)
Just try to concentrate on hitting/kicking the ball. (37.3)
The kitten curled itself into a ball. (54.0)