| Text | Length |
| Firm parts, briefly | 19 |
| Firm parts: Abbr. | 17 |
| Firm person: Abbr. | 18 |
| Firm pro: Abbr. | 15 |
| Firm refusal | 12 |
| Firm selection | 14 |
| Firm stances | 12 |
| Firm symbols | 12 |
| Firm the muscles | 16 |
| Firm understanding | 18 |
| Firm up, as muscles | 19 |
| Firm up, in a way | 17 |
| Firm up-and-comers | 18 |
| Firm way to stand | 17 |
| Firm wheel: Abbr. | 17 |
| Firm's symbol | 17 |
| Firm's worth | 16 |
| Firm, as abs | 12 |
| Firm, as pasta | 14 |
| Firm, in a way | 14 |
| Firm, like pasta | 16 |
| Firm-name ending | 16 |
| Firm; steady | 12 |
| Firma or cotta | 14 |
| Firma starter | 13 |
| Firmed muscles | 14 |
| Firming shot | 12 |
| Firming, as muscles | 19 |
| Firmly add on | 13 |
| Firmly affixed | 14 |
| Firmly attached | 15 |
| Firmly attaches | 15 |
| Firmly constructed | 18 |
| Firmly determined | 17 |
| Firmly embedded | 15 |
| Firmly entrenched | 17 |
| Firmly establish | 16 |
| Firmly established | 18 |
| Firmly fastened | 15 |
| Firmly fixed | 12 |
| Firmly formed | 13 |
| Firmly implant | 14 |
| Firmly implanted | 16 |
| Firmly in place | 15 |
| Firmly opposed to | 17 |
| Firmly restrained | 17 |
| Firmly secured | 14 |
| Firmly settled | 14 |
| Firmly ties (to) | 16 |
| Firmness of purpose | 19 |
| Firmness of spirit | 18 |
| Firms (abbr.) | 13 |
| Firms muscles | 13 |
| Firms, as abs | 13 |
| Firms, for short | 16 |
| Firms: Abbr. | 12 |
| Firpo of boxing | 15 |
| Firpo of the ring | 17 |
| First (Abbr.) | 13 |
| First 007 film | 14 |
| First 007 flick | 15 |
| First 10 amendments | 19 |
| First 3 of 26 | 13 |
| First A-bomb test | 17 |
| First acrylic fiber | 19 |
| First action figure | 19 |
| First aid balm | 14 |
| First aid box | 13 |
| First aid boxes | 15 |
| First aid case | 14 |
| First aid equipment | 19 |
| First aid item | 14 |
| First aid kit item | 18 |
| First aid ointment | 18 |
| First aid or mess | 17 |
| First aid plant | 15 |
| First aid staple | 16 |
| First airing | 12 |
| First albums? | 13 |
| First alert, often | 18 |
| First Amdt. lobby | 17 |
| First among men | 15 |
| First among progeny | 19 |
| First and bulldog | 17 |
| First and foremost | 18 |
| First and pocket | 16 |
| First and second | 16 |
| First and third | 15 |
| First animal? | 13 |
| First appearance | 16 |
| First appearances | 17 |
| First Arabic letter | 19 |
| First arboretum | 15 |
| First arrival | 13 |
| First aspirin maker | 19 |
| First asteroid | 14 |
| First attempt | 13 |
| First attempts? | 15 |
| First authority | 15 |
| First base man? | 15 |
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