| Text | Length |
| I.P., e.g. | 10 |
| I.O.U., for one | 15 |
| I.o.u., e.g. | 12 |
| I.O.U.'s, etc. | 18 |
| I.O.U.'s of a sort | 22 |
| I.O.U.'s of a kind | 22 |
| I.O.U.'s | 12 |
| I.O.U. with a deadline | 22 |
| I.O.U. recipient | 16 |
| I.O.U. matter | 13 |
| I.o.u. giver | 12 |
| I.o.u. cause | 12 |
| I.O.U. | 6 |
| I.O.C. member | 13 |
| I.M.___, architect | 18 |
| I.M.'s family members | 25 |
| I.M. with plans | 15 |
| I.M. with family members in China? | 34 |
| I.M. the architect | 18 |
| I.M. snicker | 12 |
| I.M. provider | 13 |
| I.M. Pei, notably | 17 |
| I.M. Pei's alma mater | 25 |
| I.M. Pei's "I" | 28 |
| I.M. not sent through AOL? | 26 |
| I.L.G.W.U. member | 17 |
| I.L.A. men | 10 |
| I.L.A. member | 13 |
| I.L.A. man | 10 |
| I.L.A. influence? | 17 |
| I.L.A. group | 12 |
| I.E.? | 5 |
| I.e., in full | 13 |
| I.e., i.e. | 10 |
| i.e., for long | 14 |
| i.e., e.g. | 10 |
| I.e. words | 10 |
| i.e. | 4 |
| I.D.'s for animals | 22 |
| I.D. datum | 10 |
| I.D. | 4 |
| I.C.U. worker | 13 |
| I.C.U. test | 11 |
| I.C.U. staff | 12 |
| I.C.U. pros | 11 |
| I.C.U. personnel | 16 |
| I.C.U. locale | 13 |
| I.C.U. items | 12 |
| I.C.U. hookups | 14 |
| I.C.U. helpers | 14 |
| I.C.U. figure | 13 |
| I.C.U. conduits | 15 |
| I.C.C. issuance: Abbr. | 22 |
| I.C.C. concern | 14 |
| I.C.B.M. shelters | 17 |
| I.C.A.'s predecessor | 24 |
| I.C.A. predecessor | 18 |
| I.B.T. vehicle | 14 |
| I.B.T. member | 13 |
| I.B.M.-compatibles | 18 |
| I.B.M., e.g. | 12 |
| I.B.M. unit | 11 |
| I.B.M. rival | 12 |
| I.B.M. processor type found in Nintendo's Wii | 49 |
| I.B.M. or 3M, e.g.: Abbr. | 25 |
| I.B.M. laptop | 13 |
| I.B.M. event of 1915 | 20 |
| I.B.M. computer of the 1990s | 28 |
| I.B.M. competitor | 17 |
| I.B.M. "brain" | 24 |
| I.B.F. rival | 12 |
| I. Walton was one | 17 |
| I. W. or Walter | 15 |
| I. W. of U.S.W.A. fame | 22 |
| I. S. Cobb's "___ Laughing" | 41 |
| I. M. ___ | 9 |
| I. M. Pei, for one | 18 |
| I. M. Pei's alma mater, for short | 37 |
| I. M. Pei's alma mater | 26 |
| I. M. and Mario | 15 |
| I. Bergman's 1956 Oscar film | 32 |
| I-XII place, perhaps | 20 |
| I-XII locale | 12 |
| I-shaped building piece, when turned on its side | 48 |
| I-minded individual | 19 |
| I-M linkup | 10 |
| I-M link | 8 |
| I-less word? | 12 |
| I-I connector of palindromic fame | 33 |
| I-don't-know-how-long | 25 |
| I-beam, e.g. | 12 |
| I-beam's cousin | 19 |
| I-beam projection | 17 |
| I-beam part | 11 |
| I-beam material | 15 |
| I-beam lifter | 13 |
| I-beam | 6 |
| I-95, etc. | 10 |
| I-95, e.g.: Abbr. | 17 |
| I-95, e.g. | 10 |
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