| Text | Length |
| Isn't up to par | 19 |
| Isn't up to par? | 20 |
| Isn't up to snuff | 21 |
| Isn't upright | 17 |
| Isn't used | 14 |
| Isn't vertical | 18 |
| Isn't very visible | 22 |
| Isn't vigilant | 18 |
| Isn't watertight | 20 |
| Isn't well | 14 |
| Isn't wishy-washy | 21 |
| Isn't with it | 17 |
| Isn't without | 17 |
| Isn't wrong? | 16 |
| Isn't yet decided | 21 |
| Isn't yet ready to settle? | 30 |
| Isn't ___ shame? | 20 |
| Isn't, alternatively | 24 |
| Isn't, casually | 19 |
| Isn't, nonstandardly | 24 |
| Isn't, slangily | 19 |
| Isn't, the wrong way | 24 |
| IsnÂ’t a pro | 15 |
| IsnÂ’t square | 16 |
| IsnÂ’t wrong? | 16 |
| Iso or poly add-on | 18 |
| Iso- | 4 |
| Iso- cousin | 11 |
| Iso- kin | 8 |
| Isocrates was one | 17 |
| Isocrates, for one | 18 |
| Isocrates? | 10 |
| Isogram | 7 |
| Isolate | 7 |
| Isolate a crime scene | 21 |
| Isolate again, as a beat | 24 |
| Isolate during the winter | 25 |
| Isolate during winter | 21 |
| Isolate like Gilligan | 21 |
| Isolate like Napoleon | 21 |
| Isolate, as Napoleon | 20 |
| Isolate, as Napoleon Bonaparte | 30 |
| Isolate, due to a blizzard | 26 |
| Isolate, emotionally | 20 |
| Isolate, in a way | 17 |
| Isolate, old style | 18 |
| Isolate, possibly | 17 |
| Isolate, somehow | 16 |
| Isolate, with "off" | 29 |
| Isolated | 8 |
| Isolated (with ''off'') | 39 |
| Isolated and dangerous | 22 |
| Isolated appearance | 19 |
| Isolated area | 13 |
| Isolated areas of vegetation | 28 |
| Isolated community | 18 |
| Isolated districts | 18 |
| Isolated fertile areas | 22 |
| Isolated flare up disrupted by expedition (11) | 46 |
| Isolated flattop | 16 |
| Isolated French places | 22 |
| Isolated from others | 20 |
| Isolated haven | 14 |
| Isolated hill | 13 |
| Isolated hill surrounded by lava | 32 |
| Isolated hills | 14 |
| Isolated instance | 17 |
| Isolated land | 13 |
| Isolated locales | 16 |
| Isolated mathematical point | 27 |
| Isolated nest | 13 |
| Isolated nest: Var. | 19 |
| Isolated or insulated | 21 |
| Isolated PC key | 15 |
| Isolated place | 14 |
| Isolated places | 15 |
| Isolated plateau | 16 |
| Isolated prison area (represented by this 4x4 corner) from which the solver must escape | 87 |
| Isolated region | 15 |
| Isolated rock | 13 |
| Isolated rocks | 14 |
| Isolated spot/Boardwalk area | 28 |
| Isolated valley | 15 |
| Isolated, (with "off") | 32 |
| Isolated, and feeling it | 24 |
| Isolated, as a people | 21 |
| Isolated, in a way | 18 |
| Isolated, peaceful rural places | 31 |
| Isolated, with "off" | 30 |
| Isolates | 8 |
| Isolates, as one from among many | 32 |
| Isolating | 9 |
| Isolating tactics | 17 |
| Isolation | 9 |
| Isolation is his delectation | 28 |
| Isolationist in the Senate: 1925–45 | 42 |
| Isolationist's bane | 23 |
| Isolde's beloved | 20 |
| Isolde's love | 17 |
| Isolde's lover | 18 |
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