| In the past week or so | 22 |
| In the past, in poetry | 22 |
| In the past, in the past | 24 |
| In the past, old style | 22 |
| In the past, once | 17 |
| In the past, poetically | 23 |
| In the past, to the Bard | 24 |
| In the past: Abbr. | 18 |
| In the path of a glacier | 24 |
| In the pen | 10 |
| In the phone book | 17 |
| In the phone directory | 22 |
| In the picnic cooler | 20 |
| In the pink | 11 |
| In the place already mentioned | 30 |
| In the place of | 15 |
| In the pokey | 12 |
| In the pool | 11 |
| In the poorest of taste, as a novel | 35 |
| In the poorhouse | 16 |
| In the preceding mo. | 20 |
| In the preceding month | 22 |
| In the preceding paragraph, perhaps | 35 |
| In the presence of | 18 |
| In the presence of each other | 29 |
| In the present | 14 |
| In the present condition | 24 |
| In the present state | 20 |
| In the previous month | 21 |
| In the previous paragraph, say | 30 |
| In the prime of life | 20 |
| In the prior month | 18 |
| In the process of flowering? | 28 |
| In the proper manner | 20 |
| In the proverbial cellar | 24 |
| In the public domain: Abbr. | 27 |
| In the public eye | 17 |
| In the queue | 12 |
| In the rainy-day fund, say | 26 |
| In the raw | 10 |
| In the real world | 17 |
| In the realm of possibility | 27 |
| In the rear | 11 |
| In the rear, at sea | 19 |
| In the recent past | 18 |
| In the recliner, e.g. | 21 |
| In the red | 10 |
| In the Red or the Black | 23 |
| In the Red? | 11 |
| In the rococo style | 19 |
| In the role of | 14 |
| In the running to be | 20 |
| In the sack | 11 |
| In the sack, slangily | 21 |
| In the saddle | 13 |
| In the saddle of, traditionally | 31 |
| In the saddle, e.g. | 19 |
| In the same ballpark as | 23 |
| In the same book, briefly | 25 |
| In the same category | 20 |
| In the same degree | 18 |
| In the same familiar role | 25 |
| In the same family | 18 |
| In the same family tree | 23 |
| In the same loc. | 16 |
| In the same manner | 18 |
| In the same place | 17 |
| In the same place briefly | 26 |
| In the same place (Lat.) | 24 |
| In the same place, briefly | 26 |
| In the same place, in a bibliog. | 32 |
| In the same place, in footnotes | 31 |
| In the same place, in footnotes (Abbr.) | 39 |
| In the same place, to Pompey | 28 |
| In the same place: Abbr. | 24 |
| In the same place: L. | 21 |
| In the same place: Lat. | 23 |
| In the same place: Latin. | 25 |
| In the same vein | 16 |
| In the same way | 15 |
| In the sandman's arms | 25 |
| In the second-best category | 27 |
| In the secretary's drawer | 29 |
| In the shadows, perhaps | 23 |
| In the ship's hold | 22 |
| In the short term | 17 |
| In the showcase | 15 |
| In the sixth grade or earlier, typically | 40 |
| In the skies, the Hunter | 24 |
| In the sky | 10 |
| In the sky, maybe | 17 |
| In the slammer | 14 |
| In the slighest | 15 |
| In the slightest | 16 |
| In the slightest degree | 23 |
| In the spirit of | 16 |
| In the spot | 11 |
| In the spotlight | 16 |
| In the spotlight, perhaps | 25 |
| In the stomach | 14 |