| BIRDSFOOTS | • bird's-foots n. Plural of bird’s-foot. • BIRDSFOOT n. a papilionaceous genus of plants with clawlike pods. |
| BOARFISHES | • boarfishes n. Plural of boarfish. • BOARFISH n. a Mediterranean fish, so called from the resemblance of the extended lips to a hog's snout. |
| BRIEFCASES | • briefcases n. Plural of briefcase. • BRIEFCASE n. a small case for carrying briefs, or for documents in general. |
| BRUSHFIRES | • brushfires n. Plural of brushfire. • brush-fires n. Plural of brush-fire. • brush␣fires n. Plural of brush fire. |
| BURRFISHES | • burrfishes n. Plural of burrfish. • BURRFISH n. a fish with erect spines. |
| FIBERGLASS | • fiberglass n. (American spelling) Alternative form of fibreglass. • fiberglass v. (American spelling) Alternative form of fibreglass. • FIBERGLASS v. (US) to coat with fiberglass, a synthetic fibre made of fine filaments of molten glass, also FIBREGLASS. |
| FIBREGLASS | • fibreglass n. Silica based glass extruded into fibers that possess a length at least 1000 times greater than their width. • fibreglass n. Ellipsis of fibreglass wool. • fibreglass n. A composite material made from fine fibres of spun glass held together with resin. |
| FIBROSITIS | • fibrositis n. Fibromyalgia. • FIBROSITIS n. inflammation of the nerve fibres. |
| FIREBUSHES | • FIREBUSH n. as in Chilean firebush, a South American shrub with scarlet flowers. |
| FIRSTBORNS | • firstborns n. Plural of firstborn. • FIRSTBORN n. the first in order of birth, the eldest child. |
| FRAMBESIAS | • FRAMBESIA n. a tropical skin disease, aka yaws, also FRAMBOESIA. |
| FRAMBOISES | • framboises n. Plural of framboise. • FRAMBOISE n. (French) a brandy distilled from raspberries in the Alsace-Lorraine region. |
| FROSTBITES | • frostbites n. Plural of frostbite. • FROSTBITE v. to affect with frostbite. |
| FURBISHERS | • furbishers n. Plural of furbisher. • FURBISHER n. one who furbishes; esp. a sword cutler, who finishes sword blades and similar weapons. |
| SEBIFEROUS | • sebiferous adj. (Botany) Producing vegetable tallow. • sebiferous adj. (Physiology) Producing fat; sebaceous. • SEBIFEROUS adj. bearing fatty matter. |