| If you're lucky | 19 |
| If you're on it, you're going to hell | 45 |
| If you're tired, you've lost it | 39 |
| If __ be | 8 |
| If ___ | 6 |
| If ___ (Kenneth Cole shoe brand) | 32 |
| If ___ (Kenneth Cole shoe) | 26 |
| If ___ (should circumstances warrant) | 37 |
| If ___ (when necessary) | 23 |
| If ___ be | 9 |
| If ____ a Hammer | 16 |
| If ____ Have You : 1976 hit song | 34 |
| If ____ Would Leave You : Camelot ballad | 42 |
| If's frequent companion, in a computer program | 50 |
| If's partner, in logic | 26 |
| If's partner, in programming | 32 |
| If, and or but: Abbr. | 21 |
| If-all-goes-wrong-the-first-time scheme | 39 |
| If-looks-could-kill looks | 25 |
| If-possible connector | 21 |
| If-then analysis | 16 |
| If-then-__: programmer's sequence | 37 |
| If-__: conditional statements | 29 |
| If-___ (computer routines) | 26 |
| Iffy | 4 |
| Iffy attempt | 12 |
| Iffy Const. amendment | 21 |
| Iffy no. | 8 |
| Iffy perquisite | 15 |
| Iffy reply | 10 |
| Iffy response | 13 |
| Iffy response from the boss | 27 |
| Iffy sched. letters | 19 |
| Iffy stat in a storm | 20 |
| Iffy suffix | 11 |
| Iffy thing to wear in a windstorm? | 34 |
| Iffy weather guide | 18 |
| Ifs or buts partners | 20 |
| Ifs, ands and buts, e.g. | 24 |
| Iftar celebrant | 15 |
| Iger's predecessor at Disney | 32 |
| Iggy Azalea hit | 15 |
| Iggy detailed the account transfer from his previous bank as a ... | 66 |
| Iggy displayed some undeveloped photographs in order to make a ... | 66 |
| Iggy investigated the theft of benches from the weight-room so he could yell "___!" | 93 |
| Iggy Pop "Eat Or Be ___" | 34 |
| Iggy Pop "Eggs On ___" | 32 |
| Iggy Pop band, before the Stooges | 33 |
| Iggy Pop's backup group, with "The" | 49 |
| Iggy Pop's band | 19 |
| Iggy Pop's debut album | 26 |
| Iggy read questions from a theology midterm during his ... | 58 |
| Iggy reported on the delayed start at the billiards tournament so he could yell "___!" | 96 |
| Iggy reviewed the autobiography of a hide-and-seek champion so he could yell "___!" | 93 |
| Iggy wrote about the rising popularity of sleep shirts so he could yell "___!" | 89 |
| Iggy ___ | 8 |
| Iginla milieu | 13 |
| Iglesia attendee | 16 |
| Iglesias tune | 13 |
| Igloo | 5 |
| Igloo builder | 13 |
| Igloo builders | 14 |
| Igloo dweller | 13 |
| Igloo dwellers | 14 |
| Igloo feature? | 14 |
| Igloo footgear | 14 |
| Igloo inhabitant | 16 |
| Igloo inhabitants | 17 |
| Igloo knife | 11 |
| Igloo man: Abbr. | 16 |
| Igloo material | 14 |
| Igloo or hogan | 14 |
| Igloo or teepee e.g. | 21 |
| Igloo resident: Abbr. | 21 |
| Igloo shape | 11 |
| Igloo's lack | 16 |
| Igloo's shape | 17 |
| Igloo, essentially | 18 |
| Igloo? | 6 |
| Igloo? (or digging tool missing a piece) | 40 |
| Igloos and yurts | 16 |
| Igloos, basically | 17 |
| Igloos, e.g. | 12 |
| Igloos, essentially | 19 |
| Iglu and yoghurt, e.g. | 22 |
| Ignatius follower | 17 |
| Ignatius of Loyola follower | 27 |
| Ignatius of Loyola, notably | 27 |
| Ignatz Mouse's brick-throwing target | 40 |
| Ignatz's Krazy foil | 23 |
| Igneous | 7 |
| Igneous basements? | 18 |
| Igneous flow | 12 |
| Igneous rock | 12 |
| Igneous rock beneath the earth's surface | 44 |
| Igneous rock composed of feldspar and hornblende | 48 |
| Igneous rock constituent | 24 |
| Igneous rock former | 19 |
| Igneous rock maker | 18 |
| Igneous rock material | 21 |