| AERIFORM | • aeriform adj. Pertaining to air. • aeriform adj. Having a form similar to that of air. • aeriform adj. Light, unsubstantial, or unstable. |
| AEROFOIL | • aerofoil n. Britain standard form of airfoil. • AEROFOIL n. a structure which gives rise to a lift force when moving through the air, e.g. a wing of an aircraft, also AIRFOIL. |
| BIFORATE | • biforate adj. Having two openings. • biforate adj. (Botany) Having two perforations. • biforate adj. (Architecture) Having two doors or windows. |
| FAILOVER | • failover n. (Computing, countable) An automatic switch to a secondary system on failure of the primary system, such… • fail␣over v. (Computing) To automatically switch processing from a failed component in a critical system to its live… • FAILOVER n. a procedure by which a computer system automatically transfers control to a backup system on detecting a failure. |
| FAIRGOER | • fairgoer n. A person who is attending a fair. • fair-goer n. Alternative form of fairgoer. • FAIRGOER n. one who attends a fair. |
| FARINOSE | • farinose adj. Yielding or related to farina. • farinose adj. (Botany, zoology) Covered with a sort of white, mealy powder, like the leaves of some poplars, and the… • FARINOSE adj. resembling or yielding flour. |
| FAVORITE | • favorite adj. (American spelling) Alternative form of favourite. • favorite n. (American spelling) Alternative form of favourite. • favorite v. (American spelling) Alternative form of favourite. |
| FIREBOAT | • fireboat n. A harbor boat designed for pumping large volumes of harbor water onto dockside fires. • FIREBOAT n. a boat equipped with firefighting apparatus. |
| FLOATIER | • floatier adj. Comparative form of floaty: more floaty. • FLOATY adj. tending to float. |
| FOEDARIE | • FOEDARIE n. (Shakespeare) a confederate, also FEDARIE, FEDERARIE, FEDERARY. |
| FORELAID | • forelaid v. Simple past tense and past participle of forelay. • FORELAY v. to wait in ambush. |
| FORELAIN | • forelain v. Past participle of forelie. • FORELAY v. to wait in ambush. |
| FORESAID | • foresaid adj. (Rare) Aforesaid; aforementioned. • foresaid v. Simple past tense and past participle of foresay. • FORESAY v. to foretell. |
| FORESAIL | • foresail n. (Nautical, on a square-rigged ship) The lowest (and usually the largest) square sail hung on the foremast. • foresail n. (Nautical) A square fore-and-aft sail set on the foremast, but behind it, on a schooner or other similar vessel. • foresail n. (Nautical, on a sloop) A triangular sail set forward of the foremast: forestaysail. |
| FORHAILE | • FORHAILE v. (Spenser) to distract. |
| FORMIATE | • FORMIATE n. a salt of formic acid. |
| PINAFORE | • pinafore n. A sleeveless dress, often similar to an apron, generally worn over other clothes, and most often worn… • PINAFORE n. a loose protective garment worn over a dress. |