| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| underground railroad definition in history | 1.2 | 1 | 8277 | 30 | 42 |
| underground | 1.61 | 0.7 | 3352 | 21 | 11 |
| railroad | 0.9 | 0.5 | 3806 | 21 | 8 |
| definition | 0.07 | 0.5 | 7001 | 65 | 10 |
| in | 0.07 | 0.8 | 8526 | 96 | 2 |
| history | 1.29 | 0.3 | 3254 | 35 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| underground railroad definition in history | 1.11 | 0.9 | 3330 | 33 |
