| BIOWARFARE | • biowarfare n. Biological warfare. |
| CRIBRIFORM | • cribriform adj. Perforated, as in the manner of a sieve. • CRIBRIFORM adj. shaped like a sieve. |
| FABRICATOR | • fabricator n. A person who fabricates or manufactures something; a manufacturer. • fabricator n. A person who makes a fabrication of something; a counterfeiter or falsifier. • FABRICATOR n. one who fabricates. |
| FIBERBOARD | • fiberboard n. (American spelling) A material made from wood chips or shavings, which are compressed and bonded with… • FIBERBOARD n. (US) a material made from compressed wood fibres, also FIBREBOARD. |
| FIBREBOARD | • fibreboard n. Britain and Canada standard spelling of fiberboard. • FIBREBOARD n. a material made from compressed wood fibres, also FIBERBOARD. |
| FIREBOARDS | • fireboards n. Plural of fireboard. • FIREBOARD n. a mantelpiece. |
| FIREBOMBER | • firebomber n. One who carries out a firebombing attack. • FIREBOMBER n. one who uses FIREBOMBS. |
| FIRSTBORNS | • firstborns n. Plural of firstborn. • FIRSTBORN n. the first in order of birth, the eldest child. |
| FORBEARING | • forbearing n. Forbearance; restraint. • forbearing adj. Characterized by patience and indulgence; long-suffering. • forbearing v. Present participle of forbear. |
| FORBIDDERS | • forbidders n. Plural of forbidder. • FORBIDDER n. one who forbids. |
| FOREBITTER | • FOREBITTER n. a nautical ballad sung at the forebitts. |
| FOREBRAINS | • forebrains n. Plural of forebrain. • FOREBRAIN n. the anterior region of the embryonic brain. |
| FOXBERRIES | • foxberries n. Plural of foxberry. • FOXBERRY n. the red whortleberry. |
| FRITHBORHS | • frithborhs n. Plural of frithborh. • FRITHBORH n. (Old English) a surety for keeping the peace, aka frankpledge. |
| MICROFIBER | • microfiber n. (American spelling) Very fine synthetic fiber; cloth made of such fiber. • MICROFIBER n. a cloth of tightly woven synthetic fibre, also MICROFIBRE. |
| MICROFIBRE | • microfibre n. (British spelling, Canadian spelling) Alternative spelling of microfiber. • MICROFIBRE n. a cloth of tightly woven synthetic fibre, also MICROFIBER. |
| OVERBRIEFS | • OVERBRIEF v. to brief excessively. |
| TUBERIFORM | • tuberiform adj. Resembling a tuber. • TUBERIFORM adj. shaped like a lump or protuberance. |