| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| definition of nullification in history | 0.49 | 0.5 | 5809 | 6 | 38 |
| definition | 1.08 | 0.5 | 3089 | 59 | 10 |
| of | 1.74 | 0.9 | 9808 | 21 | 2 |
| nullification | 1.84 | 1 | 3941 | 98 | 13 |
| in | 1.4 | 0.4 | 301 | 8 | 2 |
| history | 0.76 | 0.3 | 864 | 96 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| definition of nullification in history | 0.92 | 0.8 | 8600 | 92 |
