| Highway posting | 15 |
| Highway ramp | 12 |
| Highway ramp style | 18 |
| Highway reading matter | 22 |
| Highway rescue | 14 |
| Highway respites | 16 |
| Highway reversals, in slang | 27 |
| Highway rig | 11 |
| Highway rigs | 12 |
| Highway robbery victim, maybe | 29 |
| Highway robbery? | 16 |
| Highway roller | 14 |
| Highway rollers | 15 |
| Highway rumbler | 15 |
| Highway rumblers | 16 |
| Highway S-curve? | 16 |
| Highway safety lobbying gp. | 27 |
| Highway safety marker | 21 |
| Highway safety org. | 19 |
| Highway scofflaw | 16 |
| Highway sealer | 14 |
| Highway section | 15 |
| Highway sections | 16 |
| Highway segment | 15 |
| Highway separator | 17 |
| Highway shelter | 15 |
| Highway shoulder | 16 |
| Highway sight | 13 |
| Highway sight, formally? | 24 |
| Highway sights | 14 |
| Highway sign | 12 |
| Highway sign abbr. | 18 |
| Highway sign listing additional points of interest | 50 |
| Highway sign word | 17 |
| Highway sound | 13 |
| Highway speed limit, perhaps | 28 |
| Highway speed postings | 22 |
| Highway speedsters | 18 |
| Highway spots | 13 |
| Highway statistic | 17 |
| Highway statistics | 18 |
| Highway stop | 12 |
| Highway stopover | 16 |
| Highway stopovers | 17 |
| Highway stopping places | 23 |
| Highway stopping-place | 22 |
| Highway stops | 13 |
| Highway strip | 13 |
| Highway strips | 14 |
| Highway subdivision | 19 |
| Highway symbol | 14 |
| Highway system components | 25 |
| Highway tax | 11 |
| Highway that runs through Williamsburg: Abbr. | 45 |
| Highway through Houston | 23 |
| Highway through the Yukon | 25 |
| Highway through Whitehorse | 26 |
| Highway to Fairbanks | 20 |
| Highway to heaven? | 18 |
| Highway to north | 16 |
| Highway to Pisa | 15 |
| Highway toll unit | 17 |
| Highway toll units | 18 |
| Highway trashers | 16 |
| Highway troopers | 16 |
| Highway unit | 12 |
| Highway units | 13 |
| Highway user | 12 |
| Highway vehicle | 15 |
| Highway warning | 15 |
| Highway warning sign | 20 |
| Highway warning sign message | 28 |
| Highway warnings | 16 |
| Highway weigh station targets | 29 |
| Highway with a no. | 18 |
| Highway with a terminus at Dawson Creek, British Columbia | 57 |
| Highway with booths, e.g. | 25 |
| Highway with tolls | 18 |
| Highway with tolls: Abbr. | 25 |
| Highway workers' items | 26 |
| Highway ___ | 11 |
| Highway ____ marker | 19 |
| Highway's center | 20 |
| Highway's counterpart in fuel economy | 41 |
| Highway, e.g. | 13 |
| Highway, for example | 20 |
| Highway-distance marker | 23 |
| Highway-exit pattern | 20 |
| Highway-flow center: Abbr. | 26 |
| Highway-radar recording | 23 |
| Highway-sign abbr. | 18 |
| Highway-sign feature | 20 |
| Highway-sign icon | 17 |
| Highway-sign word | 17 |
| Highway: abbr. | 14 |
| Highwayman | 10 |
| Highwayman Claude | 17 |
| Highwayman of a kind? | 21 |
| Highwayman with a weapon | 24 |
| Highwayman's booty | 22 |