| Share | Phrase |
|---|
| 9.47% | light illumination |
| 9.02% | illumination intensity |
| 8.77% | illumination device |
| 7.29% | lamp illumination |
| 6.88% | illumination voltage |
| 4.88% | provide illumination [perform operation] |
| 4.86% | general [typicality] illumination |
| 4.32% | local [location] illumination |
| 4.18% | level [shape] illumination |
| 3.57% | illumination bulb |
| 3.00% | area illumination |
| 2.90% | illumination source |
| 2.85% | illumination detector |
| 2.41% | low [size] illumination |
| 2.22% | illumination pattern |
| 2.18% | bulb illumination |
| 2.15% | panel illumination |
| 2.00% | illumination lamp |
| 1.97% | normal [typicality] illumination |
| 1.97% | illumination beam |
| 1.53% | illumination system |
| 1.49% | illumination element |
| 1.20% | continuous [time duration] illumination |
| 1.11% | illumination [does] indicate |
| 1.07% | cause illumination [perform operation] |
| 1.06% | portion illumination |
| 1.05% | illumination mode |
| 0.91% | illumination axis |
| 0.78% | illumination circuit |
| 0.72% | control illumination [perform operation] |
| 0.70% | illumination means |
| 0.67% | brake illumination |
| 0.66% | illumination signal |