| Text | Length |
| Is undoubtedly | 14 |
| Is unintelligible | 17 |
| Is unlike Peter Pan | 19 |
| Is unobliged to | 15 |
| Is unresolved | 13 |
| Is unsuccessful | 15 |
| Is untruthful | 13 |
| Is untruthful with | 18 |
| Is up against | 13 |
| Is up to no good | 16 |
| Is up to the task | 17 |
| Is up, in a way | 15 |
| Is vanquished by | 16 |
| Is venomous to | 14 |
| Is venturesome | 14 |
| Is very angry | 13 |
| Is very burdensome | 18 |
| Is very dizzy | 13 |
| Is very wary of | 15 |
| Is victorious | 13 |
| Is victorious over | 18 |
| Is visibly elated | 17 |
| Is way off base | 15 |
| Is wearisome | 12 |
| Is well-endowed? | 16 |
| Is well-informed | 16 |
| Is wild about | 13 |
| Is wildly unstable | 18 |
| Is willing to | 13 |
| Is wiped out | 12 |
| Is wistful (for) | 16 |
| Is within earshot | 17 |
| Is worried about | 16 |
| Is worse than ever | 18 |
| Is worth doing | 14 |
| Is worthwhile | 13 |
| Is worthy of | 12 |
| Is __: likely will | 18 |
| Is ___ bird? | 12 |
| Is ___ promise? | 15 |
| Is ___ unto oneself | 19 |
| Is, for many | 12 |
| Is, for Ovid | 12 |
| Is, in history? | 15 |
| Is, in Iberville | 16 |
| Is, in Ibiza | 12 |
| Is, in Isère | 15 |
| Is, in Ixtapa | 13 |
| Is, on Ibiza | 12 |
| Is, pluralized | 14 |
| Is, to Isabella | 15 |
| Is, when simplified | 19 |
| Isaac and Howard | 16 |
| Isaac Asimov novel | 18 |
| Isaac Bickerstaff | 17 |
| Isaac Newton, e.g. | 18 |
| Isaac of fiddledom | 18 |
| Isaac of music | 14 |
| Isaac of sci-fi | 15 |
| Isaac or Helen | 14 |
| Isaac or Howard | 15 |
| Isaac or Wayne | 14 |
| Isaac Stern stroke | 18 |
| Isaac the violinist | 19 |
| Isaac Wise, e.g. | 16 |
| Isaac with a bow | 16 |
| Isaac with a violin | 19 |
| Isaac's eldest | 18 |
| Isaac's father | 18 |
| Isaac's first | 17 |
| Isaac's mother | 18 |
| Isaac's oldest | 18 |
| Isaac's son | 15 |
| Isaac, familiarly | 18 |
| Isaac, for short | 16 |
| Isaac, informally | 17 |
| Isaac, to Abraham | 17 |
| Isaac, to Jacob | 15 |
| Isaak Babel book | 16 |
| Isabel II was one | 17 |
| Isabel II, e.g. | 15 |
| Isabel or Eva | 13 |
| Isabel or Juan | 14 |
| Isabel was one | 14 |
| Isabel's center | 19 |
| Isabel, e.g. | 12 |
| Isabel, for one | 15 |
| Isabel, por ejemplo | 19 |
| Isabella and Sofia | 18 |
| Isabella d'___ | 18 |
| Isabella's home | 19 |
| Isabella, e.g. | 14 |
| Isaiah contemporary | 19 |
| Isaiah follower | 15 |
| Isaiah or Elijah | 16 |
| Isak Dinesen book | 17 |
| Isak Dinesen, e.g. | 18 |
| Isan Thai language | 18 |
| Isao of golf | 12 |
| Isao of the PGA | 15 |
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