苹果技术支持在线页面:what does"board director"mean?please!

what does"board director"mean?please! what does "PK" stand for? What does "PK" stand for? what does "set shot" mean? what does "boo hockey" mean? what does "tis" mean? What does "doy" mean? what does he do? means "()" what does "accountancy package" mean ? What does "favored by" mean?