| FILLESTER | • FILLESTER n. a rabbet plane used in making window sashes, also FILISTER, FILLISTER. |
| FILLETERS | • filleters n. Plural of filleter. • FILLETER n. one who fillets. |
| FILLISTER | • fillister n. (Architecture) A rabbet/rebate for holding a sash window. • fillister n. A plane for making a rabbet. • FILLISTER n. a rabbet plane used in making window sashes, also FILISTER, FILLESTER. |
| FIREBALLS | • fireballs n. Plural of fireball. • FIREBALL n. a luminous meteor. |
| FIREHALLS | • firehalls n. Plural of firehall. • fire␣halls n. Plural of fire hall. • FIREHALL n. a fire station. |
| FIREWALLS | • firewalls n. Plural of firewall. • FIREWALL v. to install software that protects a network against unauthorized users. |
| FLESHLIER | • fleshlier adj. Comparative form of fleshly: more fleshly. • FLESHLY adj. pertaining to the body. |
| FRILLIEST | • frilliest adj. Superlative form of frilly: most frilly. • FRILLY adj. having frills. |
| FRILLINGS | • frillings n. Plural of frilling. • FRILLING n. an arrangement of frills. |
| FULLERIES | • fulleries n. Plural of fullery. • FULLERY n. a place for fulling cloth. |
| HELLFIRES | • hellfires n. Plural of hellfire. • HELLFIRE n. the torment of hell. |
| HILLFORTS | • hillforts n. Plural of hillfort. • hill-forts n. Plural of hill-fort. • HILLFORT n. a fort built on a hill. |
| LOWLIFERS | • lowlifers n. Plural of lowlifer. • LOWLIFER n. a despicable person, also LOWLIFE. |
| OVERFILLS | • overfills v. Third-person singular simple present indicative form of overfill. • OVERFILL v. to fill to overflowing. |
| RAINFALLS | • rainfalls n. Plural of rainfall. • RAINFALL n. a fall of rain. |
| SHELLFIRE | • shellfire n. Artillery bombardment. • SHELLFIRE n. the firing of shells. |