| Text | Length |
| Firm or silken thing | 20 |
| Firm part | 9 |
| Firm part: Abbr. | 16 |
| 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 symbol | 11 |
| Firm symbols | 12 |
| Firm the muscles | 16 |
| Firm understanding | 18 |
| Firm up | 7 |
| Firm up, as muscles | 19 |
| Firm up, as one's muscles | 29 |
| Firm up, in a way | 17 |
| Firm up-and-comers | 18 |
| Firm vow | 8 |
| Firm way to stand | 17 |
| Firm wheel: Abbr. | 17 |
| Firm wheels, for short | 22 |
| Firm with a spokesduck | 22 |
| Firm workers, briefly | 21 |
| 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, lustrous fabric | 21 |
| Firm-fleshed green-skinned pear | 31 |
| Firm-name ending | 16 |
| Firm: Fr. | 9 |
| Firm; steady | 12 |
| Firma front | 11 |
| Firma or cotta | 14 |
| Firma or cotta lead-in | 22 |
| Firma starter | 13 |
| Firma's preceder | 20 |
| Firmament | 9 |
| Firmed muscles | 14 |
| Firmed up | 9 |
| Firmed up, as a date | 20 |
| Firming shot | 12 |
| Firming up | 10 |
| Firming, as muscles | 19 |
| Firmly | 6 |
| Firmly add on | 13 |
| Firmly affixed | 14 |
| Firmly affixed, in a way | 24 |
| 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 fix | 10 |
| Firmly fixed | 12 |
| Firmly formed | 13 |
| Firmly implant | 14 |
| Firmly implanted | 16 |
| Firmly in place | 15 |
| Firmly loyal, as friends | 24 |
| Firmly opposed to | 17 |
| Firmly restrained | 17 |
| Firmly secured | 14 |
| Firmly set | 10 |
| Firmly settled | 14 |
| Firmly ties (to) | 16 |
| Firmly twisted wool yarn | 24 |
| Firmness | 8 |
| Firmness of character | 21 |
| Firmness of purpose | 19 |
| Firmness of spirit | 18 |
| Firms | 5 |
| Firms (abbr.) | 13 |
| Firms (up) | 10 |
| Firms muscles | 13 |
| Firms up | 8 |
| Firms up, as concrete | 21 |
| Firms up, as muscles | 20 |
| Firms, as abs | 13 |
| Firms, for short | 16 |
| Firms: Abbr. | 12 |
| Firn | 4 |
| Firpo | 5 |
| Firpo of boxing | 15 |
| Firpo of the ring | 17 |
| Firrier? | 8 |
| First | 5 |
| First second or third | 22 |
| First #1 Billboard hit by an Australian artist (1972) | 53 |
| First #1 hit by the Beach Boys | 30 |
| First #1 hit for the Commodores | 31 |
| First #1 hit for the Ink Spots | 30 |
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