| In fancy attire | 15 |
| In fashion | 10 |
| In fashion, slangily | 20 |
| In fast time? | 13 |
| In favor | 8 |
| In favor of | 11 |
| In favor of failure? | 20 |
| In favor of governmental spending, say | 38 |
| In favor of the first book?: Abbr. | 34 |
| In favor of the idea | 20 |
| In favor of, in dialect | 23 |
| In favor of, in Dogpatch | 24 |
| In favor of, to a Clampett | 26 |
| In favor of, to Jed Clampett | 28 |
| In fear of | 10 |
| In fetters | 10 |
| In few words | 12 |
| In fiction, diction was her affliction | 38 |
| In fighting form | 16 |
| In fighting mode, slangily | 26 |
| In fighting shape | 17 |
| In fighting trim | 16 |
| In film, gradual appearance of an image through an expanding circle | 67 |
| In film, he had seven faces | 27 |
| In final form, as a film | 24 |
| In fine fettle | 14 |
| In fine muscular form | 21 |
| In fine shape | 13 |
| In fine spirits | 15 |
| In fine style | 13 |
| In fine __: fit | 15 |
| In fine ___ (fit) | 17 |
| In fine ___ (healthy) | 21 |
| In finer fettle | 15 |
| In first | 8 |
| In first grade, probably | 24 |
| In first place | 14 |
| In first place, e.g. | 20 |
| In first-class condition | 24 |
| In flagrante delicto | 20 |
| In flames | 9 |
| In Flames members, e.g. | 23 |
| In Flanders Fields poet | 23 |
| In flats, perhaps | 17 |
| In flawless condition | 21 |
| In flight | 9 |
| In flight? | 10 |
| In flower | 9 |
| In folders, say | 15 |
| In for --- awakening | 20 |
| In for the long ____ | 20 |
| In for the night | 16 |
| In force | 8 |
| In force: Abbr. | 15 |
| In foreign territory | 20 |
| In formal wear | 14 |
| In formation | 12 |
| In former days | 14 |
| In former times | 15 |
| In foxlike fashion | 18 |
| In fractions, what 12 is to 6 and 4 (abbr.) | 43 |
| In French it's frapper | 26 |
| In from the field | 17 |
| In front | 8 |
| In front (of) | 13 |
| In front of | 11 |
| In front of a hydrant, say | 26 |
| In front of Ronnie Wood, at times | 33 |
| In front of, in dialect | 23 |
| In front of, old-style | 22 |
| In front of, once | 17 |
| In full agreement | 17 |
| In full bloom | 13 |
| In full bloom, as flowers | 25 |
| In full court | 13 |
| In full cry | 11 |
| In full duration, like a pregnancy | 34 |
| In full flower | 14 |
| In full force | 13 |
| In full measure | 15 |
| In full sail | 12 |
| In full view | 12 |
| In full voice | 13 |
| In full ___ (speeding) | 22 |
| In full, carpentry tool slipped into a gap (2,1,5) | 50 |
| In fun | 6 |
| In functioning condition | 24 |
| In functioning condition (var.) | 31 |
| In Gallic harmony | 17 |
| In gear | 7 |
| In gear? | 8 |
| In general | 10 |
| In general terms | 16 |
| In generous amounts | 19 |
| In generous quantities | 22 |
| In Georgia, e.g. | 16 |
| In German notation, it's H | 30 |
| In glad rags | 12 |
| In golf, ahead by as many holes as are left to be played | 56 |
| In good --- | 11 |