| Text | Length |
| Furtive "Hey, you!" | 29 |
| Furtive "Yo!" | 23 |
| Furtive action | 14 |
| Furtive attention-getter | 24 |
| Furtive bridegroom | 18 |
| Furtive call | 12 |
| Furtive call for attention | 26 |
| Furtive family | 14 |
| Furtive fellow | 14 |
| Furtive fellow's footwear | 29 |
| Furtive glance | 14 |
| Furtive glances | 15 |
| Furtive glimpses | 16 |
| Furtive guy | 11 |
| Furtive listening device | 24 |
| Furtive look | 12 |
| Furtive looks | 13 |
| Furtive meetings | 16 |
| Furtive message | 15 |
| Furtive mission | 15 |
| Furtive movement | 16 |
| Furtive movements | 17 |
| Furtive movers | 14 |
| Furtive observations | 20 |
| Furtive one | 11 |
| Furtive ones | 12 |
| Furtive sort | 12 |
| Furtive summons | 15 |
| Furtive type | 12 |
| Furtive types | 13 |
| Furtive utterance | 17 |
| Furtive whisper | 15 |
| Furtively | 9 |
| Furtively inquire | 17 |
| Furtively inquire about | 23 |
| Furtiveness | 11 |
| Furuncles | 9 |
| Fury | 4 |
| Fury or Flicka | 14 |
| Furze | 5 |
| Furze or juniper | 16 |
| Furze or whin | 13 |
| Furze; juniper | 14 |
| Furze; whin | 11 |
| Fuse | 4 |
| Fuse abbr. | 10 |
| Fuse abbreviation | 17 |
| Fuse again | 10 |
| Fuse blower | 11 |
| Fuse box replacers | 18 |
| Fuse box unit | 13 |
| Fuse by heat | 12 |
| Fuse hosts | 10 |
| Fuse into a single entity | 25 |
| Fuse measure | 12 |
| Fuse measurements | 17 |
| Fuse metal | 10 |
| Fuse metal together | 19 |
| Fuse metals | 11 |
| Fuse ore | 8 |
| Fuse ores | 9 |
| Fuse problem | 12 |
| Fuse rating | 11 |
| Fuse rating unit | 16 |
| Fuse sound | 10 |
| Fuse thoroughly | 15 |
| Fuse together | 13 |
| Fuse unit | 9 |
| Fuse units | 10 |
| Fuse with a torch | 17 |
| Fuse with heat | 14 |
| Fuse word | 9 |
| Fuse, as glass | 14 |
| Fuse, as metal | 14 |
| Fuse, as ore | 12 |
| Fuse, e.g. | 10 |
| Fuse, in a way | 14 |
| Fuse-rating unit, for short | 27 |
| Fused | 5 |
| Fused matter removed from ore | 29 |
| Fused refuse | 12 |
| Fused together | 14 |
| Fusee | 5 |
| Fusee holders | 13 |
| Fusee, for one | 14 |
| Fuselage divider | 16 |
| Fuselage fastener | 17 |
| Fuselage part | 13 |
| Fuselage parts | 14 |
| Fuses | 5 |
| Fuses again | 11 |
| Fuses by heat | 13 |
| Fuses in a small area | 21 |
| Fuses metal | 11 |
| Fuses ore | 9 |
| Fuses together | 14 |
| Fuses, as ore | 13 |
| Fuses, perhaps | 14 |
| Fusible | 7 |
| Fusible alloys | 14 |
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