| Solution | Length | |
|---|---|---|
| 3 letters | ||
| ova | 3 | |
| tap | 3 | |
| 4 letters | ||
| pipe | 4 | |
| stem | 4 | |
| neon | 4 | |
| duct | 4 | |
| roll | 4 | |
| test | 4 | |
| rail | 4 | |
| tram | 4 | |
| reed | 4 | |
| boob | 4 | |
| 5 letters | ||
| trunk | 5 | |
| valve | 5 | |
| tvset | 5 | |
| track | 5 | |
| train | 5 | |
| straw | 5 | |
| inner | 5 | |
| 6 letters | ||
| tubing | 6 | |
| siphon | 6 | |
| roller | 6 | |
| teevee | 6 | |
| subway | 6 | |
| siding | 6 | |
| 7 letters | ||
| oviduct | 7 | |
| roadbed | 7 | |
| squeeze | 7 | |
| railway | 7 | |
| snorkel | 7 | |
| ROADWAY | 7 | |
| trestle | 7 | |
| shuttle | 7 | |
| special | 7 | |
| rouleau | 7 | |
| turnout | 7 | |
| 8 letters | ||
| terminus | 8 | |
| terminal | 8 | |
| railroad | 8 | |
| cylinder | 8 | |
| 9 letters | ||
| sidetrack | 9 | |
| standpipe | 9 | |
| bronchial | 9 | |
| 10 letters | ||
| television | 10 | |
| trunk line | 10 | |
| switchback | 10 | |
| steam pipe | 10 | |
| 11 letters | ||
| underground | 11 | |
| STREAMLINER | 11 | |
| 13 letters | ||
| rolling stock | 13 | |
| 14 letters | ||
| streetcar line | 14 | |