| Verb | 1. | rack up - gain points in a game; "The home team scored many times"; "He hit a home run"; "He hit .300 in the past season" |
| 2. | rack up - place in a rack; "rack pool balls" | |
| 3. | rack up - defeat thoroughly; "He mopped up the floor with his opponents" | |
| 4. | rack up - supply a rack with feed for (horses or other animals) |