| Similarity | Rank | |
|---|---|---|
| span | 0.657 | 5900 |
| time_span | 0.652 | 97197 |
| that_span | 0.604 | 32542 |
| over_a_period | 0.566 | 10371 |
| extend_over | 0.541 | 66813 |
| which_span | 0.528 | 97251 |
| period_of_time | 0.494 | 20386 |
| average_over | 0.490 | 79999 |
| time_frame | 0.489 | 15001 |
| time_period | 0.489 | 11084 |
| in_less_than_a | 0.485 | 26473 |
| blink_of_an_eye | 0.482 | 54406 |
| life_span | 0.480 | 50447 |
| about_[number]_year | 0.479 | 29004 |
| over | 0.475 | 117 |
| lapse_of | 0.474 | 69025 |
| length_of | 0.473 | 10191 |
| a_half | 0.469 | 4836 |
| within_a_period | 0.468 | 78704 |
| forty_year | 0.466 | 69982 |
| lifespan | 0.466 | 26422 |
| in_length | 0.464 | 13703 |
| short_than | 0.461 | 72742 |
| span_from | 0.458 | 53564 |
| pass_before | 0.457 | 72970 |