| Similarity | Rank | |
|---|---|---|
| the_[number]_st_century | 0.740 | 85770 |
| 21st-century | 0.730 | 85471 |
| twenty-first_century | 0.708 | 99513 |
| in_the_[number]_st_century | 0.684 | 51849 |
| [number]_century | 0.678 | 4260 |
| [number]_Century | 0.654 | 20293 |
| of_the_[number]_century | 0.624 | 7426 |
| in_the_twenty-first_century | 0.621 | 56594 |
| the_[number]_century | 0.618 | 3864 |
| the_twenty-first_century | 0.608 | 64068 |
| [number]_th_century | 0.605 | 34991 |
| in_the_[number]_century | 0.583 | 3815 |
| information_age | 0.577 | 58630 |
| our_era | 0.570 | 97719 |
| 20th-century | 0.564 | 91263 |
| today_world | 0.556 | 51147 |
| the_modern_world | 0.544 | 25633 |
| post-modern | 0.541 | 79140 |
| modern | 0.539 | 1476 |
| modern-day | 0.539 | 25761 |
| the_new_century | 0.531 | 90368 |
| modern_day | 0.529 | 18249 |
| the_[number]_th_century | 0.529 | 32296 |
| change_world | 0.522 | 30814 |
| contemporary | 0.518 | 2804 |