| AERIFORM | • aeriform adj. Pertaining to air. • aeriform adj. Having a form similar to that of air. • aeriform adj. Light, unsubstantial, or unstable. |
| AFFIRMER | • affirmer n. One who affirms. • AFFIRMER n. one who affirms. |
| AIRFRAME | • airframe n. The main body and structure of an aircraft (without the powerplant). • AIRFRAME n. the body of an aircraft as opposed to its engine. |
| DRUMFIRE | • drumfire n. Heavy, continuous, rapid gunfire. • DRUMFIRE n. massed artillery fire with a rolling sound. |
| FIREARMS | • firearms n. Plural of firearm. • fire␣arms n. Plural of fire arm. • FIREARM n. a weapon e.g. a gun. |
| FIREMARK | • firemark n. Alternative form of fire mark. • fire␣mark n. (Historical) A plaque mounted outside a house, bearing the emblem of the insurance company, as a guide… • FIREMARK n. a metal plate formerly placed by insurance companies to mark an insured building. |
| FIREROOM | • fireroom n. (Nautical) stokehold. • FIREROOM n. a room containing a ship's boilers. |
| FIREWORM | • fireworm n. The larva of any of several tortricid moths (family Tortricidae). • fireworm n. The bearded fireworm, Chloeia flava, a species of polychaete, in family Amphinomidae, which may cause pain if touched. • FIREWORM n. a glowworm; a firefly. |
| FIRMWARE | • firmware n. (Computing) Something in between hardware and software. Like software, it is created from source code… • firmware n. Software intended for such embedded computer applications. • FIRMWARE n. computer programs permanently stored on a microchip. |
| FRUMPIER | • frumpier adj. Comparative form of frumpy: more frumpy. • FRUMPY adj. ill-dressed or dowdy. |
| INFIRMER | • infirmer adj. Comparative form of infirm: more infirm. • INFIRM adj. sickly. |
| INFORMER | • informer n. One who informs someone else about something. • informer n. A person who tells authorities about improper or illegal activity. • informer n. One who informs, animates, or inspires. |
| MISREFER | • misrefer v. To refer incorrectly. • MISREFER v. to refer incorrectly. |
| REAFFIRM | • reaffirm v. To affirm again. • reaffirm v. To bolster or support. • REAFFIRM v. to affirm again. |
| REINFORM | • reinform v. To inform again. • REINFORM v. to inform again. |
| RENIFORM | • reniform adj. (Chiefly biology, mineralogy) Synonym of kidney-shaped (“having an approximately circular or elongated… • RENIFORM adj. kidney-shaped. |
| RETIFORM | • retiform adj. Having the form of a net; reticulate. • RETIFORM adj. arranged like a net. |
| RIMFIRES | • rimfires n. Plural of rimfire. • RIMFIRE n. a cartridge having the primer set in the rim of the shell. |