| ENFORESTS | • enforests v. Third-person singular simple present indicative form of enforest. • ENFOREST v. to turn into forest. |
| FASTENERS | • fasteners n. Plural of fastener. • FASTENER n. something that fastens. |
| FATNESSES | • fatnesses n. Plural of fatness. • FATNESS n. the state of being fat. |
| FELSTONES | • felstones n. Plural of felstone. • FELSTONE n. (obsolete) felsite, also FELSITE. |
| FENESTRAS | • fenestras n. Plural of fenestra. • FENESTRA n. (Latin) a perforation. |
| FETIDNESS | • fetidness n. The quality of being fetid. • FETIDNESS n. the state of being fetid. |
| FITNESSES | • fitnesses n. Plural of fitness. • FITNESS n. the state of being fit. |
| FLEETNESS | • fleetness n. The quality of being fleet or swift; rapidity. • FLEETNESS n. the quality of being fleet. |
| HEFTINESS | • heftiness n. The property of being hefty. • HEFTINESS n. the state of being hefty. |
| INFESTERS | • infesters n. Plural of infester. • INFESTER n. one who, or that which, infests. |
| OFTENNESS | • oftenness n. (Rare) The quality of happening often; frequency. • OFTENNESS n. frequency. |
| REFASTENS | • refastens v. Third-person singular simple present indicative form of refasten. • REFASTEN v. to fasten again. |
| RESOFTENS | • resoftens v. Third-person singular simple present indicative form of resoften. • RESOFTEN v. to soften again. |
| SOFTENERS | • softeners n. Plural of softener. • SOFTENER n. one that softens. |