The Britannica Dictionary - Idiom: get the ball rolling = to begin an activity or process She tried to get the ball rolling by asking him a few questions. https://learnersdictionary.com/definition/ball #ESL #EFL #
American English at State - Since many team sports use a ball, playing played meaning - thirstymag.com
![A view of the ball illustrating the seam and definition of θ (polar)... | Download Scientific Diagram A view of the ball illustrating the seam and definition of θ (polar)... | Download Scientific Diagram](https://www.researchgate.net/publication/379071573/figure/fig1/AS:11431281232128112@1711629402734/A-view-of-the-ball-illustrating-the-seam-and-definition-of-th-polar-and-ph-azimuthal.png)