| 100% | RUBBER | 6 | Vulcanized material developed by Charles Goodyear |
| 40% | RUBBER | 6 | Vulcanized __, invented by Goodyear for strength |
| 40% | POUNDBURY | 9 | Dorset model town developed by then Prince Charles |
| 32% | VULCANIZATION | 13 | Charles GOODyear discovery |
| 32% | RUBBERBARON | 11 | Charles Goodyear, notably? |
| 31% | EDUCATE | 7 | Develop by training and teaching |
| 30% | TAN | 3 | Shade developed by beachgoers |
| 30% | PECS | 4 | Muscles developed by rowing |
| 30% | MADRIGAL | 8 | Poem developed by chaucer |
| 30% | CONCORD | 7 | __ Sonata by Charles Ives |
| 29% | SILICONES | 9 | Polymers developed by Frederick Kipping |
| 29% | PECS | 4 | They're developed by rowing |
| 29% | SHASTA | 6 | Daisy developed by Luther Burbank |
| 29% | ANDROID | 7 | Operating system developed by Google |
| 29% | UNIX | 4 | System developed by Bell Labs |
| 29% | SAFARI | 6 | Web browser developed by Apple |
| 29% | LACROSSE | 8 | Sport developed by Native Americans |
| 29% | CULTIVARS | 9 | Plant varieties developed by breeding |
| 29% | KABALA | 6 | Mystical teachings developed by rabbis |
| 29% | PDF | 3 | File type developed by Adobe |
| 29% | BICEPS | 6 | Muscle developed by preacher curls |
| 29% | SWAMP | 5 | Morass was developed by politician |
| 29% | AMSTEREO | 8 | Radio system developed by Motorola |
| 29% | ALTONLOCKE | 10 | 1850 novel by Charles Kingsley |
| 29% | FACTOTUM | 8 | 1975 novel by Charles Bukowski |
| 29% | HYPATIA | 7 | 1853 novel by Charles Kingsley |
| 29% | OLIVER | 6 | Novel by Charles Dickens: ___ Twist |
| 29% | OLIVER | 6 | Novel by Charles Dickens: __ Twist |