| Similarity | Rank | |
|---|---|---|
| [number]_st_century | 0.730 | 86272 |
| twenty-first_century | 0.724 | 99513 |
| in_the_twenty-first_century | 0.654 | 56594 |
| [number]_century | 0.651 | 4260 |
| the_twenty-first_century | 0.642 | 64068 |
| 20th-century | 0.628 | 91263 |
| the_[number]_st_century | 0.622 | 85770 |
| in_the_[number]_st_century | 0.616 | 51849 |
| [number]_Century | 0.614 | 20293 |
| of_the_[number]_century | 0.613 | 7426 |
| modern-day | 0.611 | 25761 |
| 19th-century | 0.596 | 63427 |
| the_[number]_century | 0.591 | 3864 |
| postmodern | 0.577 | 43022 |
| contemporary | 0.567 | 2804 |
| post-modern | 0.563 | 79140 |
| modern | 0.558 | 1476 |
| the_new_century | 0.552 | 90368 |
| the_modern_world | 0.549 | 25633 |
| modern_day | 0.546 | 18249 |
| nineteenth-century | 0.539 | 51981 |
| twentieth-century | 0.531 | 81753 |
| in_the_[number]_century | 0.531 | 3815 |
| in_an_age_of | 0.528 | 48822 |
| futuristic | 0.525 | 33156 |