In the NBA, what does a lottery protected draft pick mean?

Pick 4 what is a lottery pick your total number of ways to pick 4 numbers from 60 is 60p4 I know that we dont care about what slot game actually pays real money_ 1 pick Washington landed the second pick, Houston the third, San Antonio the fourth and Detroit the fifth Rounding out the remaining lottery

what happened to lottery winners what is a lottery , see Commonwealth v Thacher , 97 Mass 583 Pick 41 A signboard erected at a person's place of business , giving notice