| Similarity | Rank | |
|---|---|---|
| steamboats | 0.905 | 97365 |
| steamship | 0.866 | 73821 |
| schooner | 0.818 | 48389 |
| riverboat | 0.814 | 69484 |
| schooners | 0.800 | 99156 |
| tugboat | 0.761 | 97877 |
| steamers | 0.745 | 55592 |
| barge | 0.743 | 24138 |
| railroad | 0.730 | 9970 |
| stagecoach | 0.724 | 74061 |
| steamer | 0.717 | 26750 |
| upriver | 0.713 | 60672 |
| barges | 0.708 | 36824 |
| rowboat | 0.707 | 90161 |
| wharf | 0.699 | 39662 |
| sloop | 0.698 | 66056 |
| transcontinental | 0.697 | 64581 |
| downriver | 0.692 | 73926 |
| railroads | 0.683 | 26179 |
| 1850's | 0.676 | 79840 |
| Penobscot | 0.674 | 82467 |
| sawmill | 0.674 | 49708 |
| dockside | 0.670 | 85079 |
| Mackinac | 0.667 | 70366 |
| 1850s | 0.666 | 43991 |