| Forming crusts | 14 |
| Forming clumps, like drying mud | 31 |
| Forming clumps | 14 |
| Forming beach volleyball teams, say | 35 |
| Forming an upward curve | 23 |
| Forming an exact proper divisor, in math | 40 |
| Forming an angle, as a car and a trailer | 40 |
| Forming a sour compound | 23 |
| Forming a singular group | 24 |
| Forming a series | 16 |
| Forming a ring | 14 |
| Forming a repeating series | 26 |
| Forming a line, as banquet tables | 33 |
| Forming a line of symmetry | 26 |
| Forming a head | 14 |
| Forming a curve | 15 |
| Forming a crust | 15 |
| Forming a corner: Abbr. | 23 |
| Forming a continuous series of holes | 36 |
| Forming a center line | 21 |
| Forming a bottom layer | 22 |
| Formidable, as a task | 21 |
| Formidable wrestlers | 20 |
| Formidable weakling | 19 |
| Formidable tots | 15 |
| Formidable task | 15 |
| Formidable rivals | 17 |
| Formidable rival | 16 |
| Formidable request | 18 |
| Formidable opponents | 20 |
| Formidable one | 14 |
| Formidable forward | 18 |
| Formidable force | 16 |
| Formidable foes | 15 |
| Formidable foe | 14 |
| Formidable entryway | 19 |
| Formidable contest | 18 |
| Formidable | 10 |
| Formicide: ant :: pulicide : ___ | 32 |
| Formicide victims | 17 |
| Formicidae fancier | 18 |
| Formicidae family member | 24 |
| Formicidae | 10 |
| Formicid | 8 |
| Formicary residents | 19 |
| Formicary resident | 18 |
| Formicary occupants | 19 |
| Formicary occupant | 18 |
| Formicary member | 16 |
| Formicary maker | 15 |
| Formicary inhabitants | 21 |
| Formicary inhabitant | 20 |
| Formicary horde | 15 |
| Formicary group | 15 |
| Formicary dwellers | 18 |
| Formicary dweller | 17 |
| Formicary denizens | 18 |
| Formicary denizen | 17 |
| Formicary creatures | 19 |
| Formicary | 9 |
| Formicarium tunneler | 20 |
| Formicarium member | 18 |
| Formicarium insect | 18 |
| Formicarians | 12 |
| Formican mound | 14 |
| Formic-acid sources | 19 |
| Formic-acid source | 18 |
| Formic mounds | 13 |
| Formic and folic | 16 |
| Formic acid sources | 19 |
| Formic acid source | 18 |
| Formfitting | 11 |
| Formers | 7 |
| Formerly, to Chaucer | 20 |
| Formerly, to a poet | 19 |
| Formerly, previously | 20 |
| Formerly, once upon a time | 26 |
| Formerly, once | 14 |
| Formerly, on the wedding page | 29 |
| Formerly, on the society pages | 30 |
| Formerly, old-style | 19 |
| Formerly, old style | 19 |
| Formerly, of yore | 17 |
| Formerly, of old | 16 |
| Formerly, name-wise | 19 |
| Formerly, matrimonially | 23 |
| Formerly, long ago | 18 |
| Formerly, in wedding news | 25 |
| Formerly, in wedding columns | 28 |
| Formerly, in wedding announcements | 34 |
| Formerly, in verse | 18 |
| Formerly, in the society pages | 30 |
| Formerly, in the past | 21 |
| Formerly, in society pages | 26 |
| Formerly, in poems | 18 |
| Formerly, in olden days | 23 |
| Formerly, in old usage | 22 |
| Formerly, in old days | 21 |
| Formerly, in newspaper announcements | 36 |
| Formerly, in Lyon | 17 |