| Text | Length |
| Flunking grades | 15 |
| Flunking letters | 16 |
| Flunking marks | 14 |
| Flunky | 6 |
| Flunky in "Young Frankenstein" | 40 |
| Flunky of old | 13 |
| Flunky on a movie set, e.g. | 27 |
| Flunky's answer | 19 |
| Flunky's expected reply | 27 |
| Flunky's response | 21 |
| Fluor finish | 12 |
| Fluoresce | 9 |
| Fluorescence trademark | 22 |
| Fluorescent | 11 |
| Fluorescent bulb filler | 23 |
| Fluorescent bulb gas | 20 |
| Fluorescent candy? | 18 |
| Fluorescent lamp filler | 23 |
| Fluorescent paint | 17 |
| Fluorescent pigment brand | 25 |
| Fluorescent trademark | 21 |
| Fluorescent tube gas | 20 |
| Fluorescent-lamp filler | 23 |
| Fluoresces | 10 |
| Fluoride beneficiary | 20 |
| Fluoride, e.g. | 14 |
| Fluoride, for one | 17 |
| Fluoride-in-water meas. | 23 |
| Fluorine neighbor in the periodic table | 39 |
| Fluorine or chlorine | 20 |
| Fluorine or iodine | 18 |
| Fluorine's atomic number | 28 |
| Fluorine, for one | 17 |
| Fluorine/carbon compound | 24 |
| Fluorite | 8 |
| Fluoroscope inventor | 20 |
| Fluoroscope inventor's initials | 35 |
| Fluoroscopist's aid | 23 |
| Fluoxetine hydrochloride, familiarly | 36 |
| Flurried, e.g. | 14 |
| Flurries | 8 |
| Flurry | 6 |
| Flurry of activity | 18 |
| Flurry of events | 16 |
| Flurry of fire | 14 |
| Flurry of happenings | 20 |
| Flush | 5 |
| Flush (with) | 12 |
| Flush at the final table, e.g. | 30 |
| Flush beater | 12 |
| Flush feature | 13 |
| Flush formation? | 16 |
| Flush of a sort | 15 |
| Flush or blue | 13 |
| Flush out | 9 |
| Flush out, with "of" | 30 |
| Flush variety | 13 |
| Flush with a stream of water, say | 33 |
| Flush with fescue | 17 |
| Flush with success | 18 |
| Flush with water | 16 |
| Flush, for example | 18 |
| Flush, for one | 14 |
| Flush, now | 10 |
| Flush, often | 12 |
| Flush, say | 10 |
| Flush, to Francisco | 19 |
| Flushed | 7 |
| Flushed from the cold, perhaps | 30 |
| Flushed with anger | 18 |
| Flushed, as cheeks | 18 |
| Flushed, as the cheeks | 22 |
| Flushes | 7 |
| Flushes out? | 12 |
| Flushes, as a deck | 18 |
| Flushing | 8 |
| Flushing Bay airport letters | 28 |
| Flushing diamond | 16 |
| Flushing feature | 16 |
| Flushing field | 14 |
| Flushing Meadow event | 21 |
| Flushing Meadow stadium name | 28 |
| Flushing Meadows exposition | 27 |
| Flushing Meadows initials | 25 |
| Flushing Meadows stadium | 24 |
| Flushing Meadows stadium honoree | 32 |
| Flushing park | 13 |
| Flushing place | 14 |
| Flushing site | 13 |
| Flushing site? | 14 |
| Flushing spot | 13 |
| Flushing stadium | 16 |
| Flushing team | 13 |
| Flushing venue | 14 |
| Fluster | 7 |
| Fluster, slangily | 17 |
| Flustered | 9 |
| Flustered one | 13 |
| Flustered state | 15 |
| Flustered states | 16 |
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