| Text | Length |
| In a rhombus, half the product of its diagonal lengths | 54 |
| In a riled state | 16 |
| In a risk-free manner | 21 |
| In a risky situation | 20 |
| In a risqué fashion | 22 |
| In a risqué manner | 21 |
| In a robust manner | 18 |
| In a rock-solid fashion | 23 |
| In a rococo fashion | 19 |
| In a romantic mood | 18 |
| In a roof-raising mood | 22 |
| In a roundabout way | 19 |
| In a roundish way | 17 |
| In a row | 8 |
| In a royal manner | 17 |
| In a ruddy way | 14 |
| In a run-down way | 17 |
| In a rush | 9 |
| In a rushed fashion | 19 |
| In a rushed manner | 18 |
| In a rut | 8 |
| In a sad state | 14 |
| In a sad way | 12 |
| In a safe place | 15 |
| In a sage manner | 16 |
| In a saintly manner | 19 |
| In a sarcastic way | 18 |
| In a sardonic way | 17 |
| In a sassy way | 14 |
| In a sauce of tomatoes, mushrooms, shredded meat, truffles, and grated cheese | 77 |
| In a saucy way | 14 |
| In a scanty way | 15 |
| In a scary way | 14 |
| In a scholarly fashion | 22 |
| In a sec | 8 |
| In a secretive way | 18 |
| In a secure manner | 18 |
| In a secure way | 15 |
| In a sedate manner | 18 |
| In a seductive way | 18 |
| In a seemly way | 15 |
| In a selfish way | 16 |
| In a semi-joking way | 20 |
| In a senectuous way | 19 |
| In a sense | 10 |
| In a sense? | 11 |
| In a senseless way | 18 |
| In a sensible way | 17 |
| In a separate place | 19 |
| In a serene manner | 18 |
| In a serene way | 15 |
| In a series | 11 |
| In a series: Fr. | 16 |
| In a serious way | 16 |
| In a servile manner | 19 |
| In a servile way | 16 |
| In a shabby way | 15 |
| In a shark costume? | 19 |
| In a sharp manner | 17 |
| In a sharp-worded manner | 24 |
| In a sheepish position? | 23 |
| In a shell, maybe | 17 |
| In a shiny coat? | 16 |
| In a shipshape manner | 21 |
| In a shocking manner | 20 |
| In a short time | 15 |
| In a short time, old-style | 26 |
| In a short time, quaintly | 25 |
| In a short while | 16 |
| In a shouting match, perhaps | 28 |
| In a showy way | 14 |
| In a shrewd manner | 18 |
| In a shy or prim way | 20 |
| In a shy way | 12 |
| In a sick way | 13 |
| In a silly fashion | 18 |
| In a silly manner | 17 |
| In a silly way | 14 |
| In a singing manner | 19 |
| In a single attempt | 19 |
| In a single effort | 18 |
| In a single try | 15 |
| In a sinister fashion | 21 |
| In a sinister manner | 20 |
| In a sinister way | 17 |
| In a skid | 9 |
| In a skill-less way | 19 |
| In a skilled manner | 19 |
| In a skillful manner | 20 |
| In a skillful way | 17 |
| In a slack manner | 17 |
| In a sleeping position | 22 |
| In a slip | 9 |
| In a slipshod fashion | 21 |
| In a sloppy manner | 18 |
| In a slothful way | 17 |
| In a slow manner | 16 |
| In a slow tempo | 15 |
| In a slow tempo, musically | 26 |
| In a slugfest with a Beatle? | 28 |
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