"marsh gas," 1670s, from fire (n.) + damp (n.) "noxious vapor." Largely methane, it can spontaneously ignite when mixed with atmospheric air.

1670s, "juggler who appears to swallow fire as part of an act," from fire (n.) + eater. From 1804 as "person of irascible or recklessly defiant disposition;" especially in U.S. history in reference to vehement Southern partizans (1851). Perhaps due to the extended senses, fire-swallower began to be used for the original sense by 1883. Related: Fire-eating.

also firefight, 1850, from fire (n.) in the military sense + fight (n.). A fight with guns and firearms (as opposed to hand-to-hand, etc.).

also crossfire, 1763, in military writing, "lines of fire from two or more positions which cross one another;" see cross- + fire (n.).

also foxfire, "phosphorescent light given off by decayed timber" (which was called foxwood), late 15c., from fox (n.) + fire (n.).

1680s, "engine designed to throw a stream of water through a hose onto a fire for the purpose of extinguishing it," from fire (n.) + engine (n.). Also an early name for a steam engine (1722).

1865, originally a device for making fire by the twirled stick method, from fire (n.) + drill (n.1). Meaning "rehearsal of what to do in a fire" is from 1884 (originally it also involved fighting the fire), from drill (n.) in the "agreed-upon procedure" sense (see drill (v.)).

1853, "worker who moves loads using a cart;" agent noun from truck (v.2). Meaning "person who drives a motorized truck" is by 1935, a shortening of truck driver (1907).

"a truck; a long wagon with a flat bed and four wheels," 1838, British railroad word, probably from verb lurry "to pull, tug" (1570s), which is of uncertain origin. Meaning "large motor vehicle for carrying goods on roads" (equivalent of U.S. truck (n.1)) is first attested 1911.

recreational pastime of riding a river on a truck tire inner tube, 1975; see tube (n.).