on fire
 起火,著火,非常激動


 On prep.  The general signification of on is situation, motion, or condition with respect to contact or support beneath; as: --
 1. At, or in contact with, the surface or upper part of a thing, and supported by it; placed or lying in contact with the surface; as, the book lies on the table, which stands on the floor of a house on an island.
    I stood on the bridge at midnight.   --Longfellow.
 2. To or against the surface of; -- used to indicate the motion of a thing as coming or falling to the surface of another; as, rain falls on the earth.
    Whosoever shall fall on this stone shall be broken.   --Matt. xxi. 44.
 3. Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with; as, to play on a violin or piano.  Hence, figuratively, to work on one's feelings; to make an impression on the mind.
 4. At or near; adjacent to; -- indicating situation, place, or position; as, on the one hand, on the other hand; the fleet is on the American coast.
 5. In addition to; besides; -- indicating multiplication or succession in a series; as, heaps on heaps; mischief on mischief; loss on loss; thought on thought.
 6. Indicating dependence or reliance; with confidence in; as, to depend on a person for assistance; to rely on; hence, indicating the ground or support of anything; as, he will promise on certain conditions; to bet on a horse; based on certain assumptions.
 7. At or in the time of; during; as, on Sunday we abstain from labor. See At (synonym).
 8. At the time of; -- often conveying some notion of cause or motive; as, on public occasions, the officers appear in full dress or uniform; the shop is closed on Sundays.  Hence, in consequence of, or following; as, on the ratification of the treaty, the armies were disbanded; start on the count of three.
 9. Toward; for; -- indicating the object of some passion; as, have pity or compassion on him.
 10. At the peril of, or for the safety of. “Hence, on thy life.”
 11. By virtue of; with the pledge of; -- denoting a pledge or engagement, and put before the thing pledged; as, he affirmed or promised on his word, or on his honor.
 12. To the account of; -- denoting imprecation or invocation, or coming to, falling, or resting upon; as, on us be all the blame; a curse on him.
    His blood be on us and on our children.   --Matt. xxvii. 25.
 13. In reference or relation to; as, on our part expect punctuality; a satire on society.
 14. Of. [Obs.] “Be not jealous on me.”
 Or have we eaten on the insane root
 That takes the reason prisoner?   --Shak.
 Note: ☞ Instances of this usage are common in our older writers, and are sometimes now heard in illiterate speech.
 15. Occupied with; in the performance of; as, only three officers are on duty; on a journey; on the job; on an assignment; on a case; on the alert.
 16. In the service of; connected with; a member of; as, he is on a newspaper; on a committee.
 Note: ☞ On and upon are in general interchangeable.  In some applications upon is more euphonious, and is therefore to be preferred; but in most cases on is preferable.
 On a bowline. Naut. Same as Closehauled.
 On a wind, or On the wind Naut., sailing closehauled.
 On a sudden. See under Sudden.
 On board, On draught, On fire, etc. See under Board, Draught, Fire, etc.
 On it, On't, of it. [Obs. or Colloq.] --Shak.
 On shore, on land; to the shore.
 On the road, On the way, On the wing, etc. See under Road, Way, etc.
 On to, upon; on; to; -- sometimes written as one word, onto, and usually called a colloquialism; but it may be regarded in analogy with into.
    They have added the -en plural form on to an elder plural.   --Earle.
    We see the strength of the new movement in the new class of ecclesiastics whom it forced on to the stage.   --J. R. Green.


 Fire n.
 1. The evolution of light and heat in the combustion of bodies; combustion; state of ignition.
 Note: ☞ The form of fire exhibited in the combustion of gases in an ascending stream or current is called flame. Anciently, fire, air, earth, and water were regarded as the four elements of which all things are composed.
 2. Fuel in a state of combustion, as on a hearth, or in a stove or a furnace.
 3. The burning of a house or town; a conflagration.
 4. Anything which destroys or affects like fire.
 5. Ardor of passion, whether love or hate; excessive warmth; consuming violence of temper.
    he had fire in his temper.   --Atterbury.
 6. Liveliness of imagination or fancy; intellectual and moral enthusiasm; capacity for ardor and zeal.
    And bless their critic with a poet's fire.   --Pope.
 7. Splendor; brilliancy; luster; hence, a star.
    Stars, hide your fires.   --Shak.
 As in a zodiac
 representing the heavenly fires.   --Milton.
 8. Torture by burning; severe trial or affliction.
 9. The discharge of firearms; firing; as, the troops were exposed to a heavy fire.
 Blue fire, Red fire, Green fire Pyrotech., compositions of various combustible substances, as sulphur, niter, lampblack, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc.
 Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm.
 Fire annihilator, a machine, device, or preparation to be kept at hand for extinguishing fire by smothering it with some incombustible vapor or gas, as carbonic acid.
 Fire balloon. (a) A balloon raised in the air by the buoyancy of air heated by a fire placed in the lower part. (b) A balloon sent up at night with fireworks which ignite at a regulated height. --Simmonds.
 Fire bar, a grate bar.
 Fire basket, a portable grate; a cresset. --Knight.
 Fire beetle. Zool. See in the Vocabulary.
 Fire blast, a disease of plants which causes them to appear as if burnt by fire.
 Fire box, the chamber of a furnace, steam boiler, etc., for the fire.
 Fire brick, a refractory brick, capable of sustaining intense heat without fusion, usually made of fire clay or of siliceous material, with some cementing substance, and used for lining fire boxes, etc.
 Fire brigade, an organized body of men for extinguished fires.
 Fire bucket. See under Bucket.
 Fire bug, an incendiary; one who, from malice or through mania, persistently sets fire to property; a pyromaniac. [U.S.]
 Fire clay. See under Clay.
 Fire company, a company of men managing an engine in extinguishing fires.
 Fire cross. See Fiery cross. [Obs.] --Milton.
 Fire damp. See under Damp.
 Fire dog. See Firedog, in the Vocabulary.
 Fire drill. (a) A series of evolutions performed by fireman for practice. (b) An apparatus for producing fire by friction, by rapidly twirling a wooden pin in a wooden socket; -- used by the Hindoos during all historic time, and by many savage peoples.
 Fire eater. (a) A juggler who pretends to eat fire. (b) A quarrelsome person who seeks affrays; a hotspur. [Colloq.]
 Fire engine, a portable forcing pump, usually on wheels, for throwing water to extinguish fire.
 Fire escape, a contrivance for facilitating escape from burning buildings.
 Fire gilding Fine Arts, a mode of gilding with an amalgam of gold and quicksilver, the latter metal being driven off afterward by heat.
 Fire gilt Fine Arts, gold laid on by the process of fire gilding.
 Fire insurance, the act or system of insuring against fire; also, a contract by which an insurance company undertakes, in consideration of the payment of a premium or small percentage -- usually made periodically -- to indemnify an owner of property from loss by fire during a specified period.
 Fire irons, utensils for a fireplace or grate, as tongs, poker, and shovel.
 Fire main, a pipe for water, to be used in putting out fire.
 Fire master (Mil), an artillery officer who formerly supervised the composition of fireworks.
 Fire office, an office at which to effect insurance against fire.
 Fire opal, a variety of opal giving firelike reflections.
 Fire ordeal, an ancient mode of trial, in which the test was the ability of the accused to handle or tread upon red-hot irons. --Abbot.
 Fire pan, a pan for holding or conveying fire, especially the receptacle for the priming of a gun.
 Fire plug, a plug or hydrant for drawing water from the main pipes in a street, building, etc., for extinguishing fires.
 Fire policy, the writing or instrument expressing the contract of insurance against loss by fire.
 Fire pot. (a) Mil. A small earthen pot filled with combustibles, formerly used as a missile in war. (b) The cast iron vessel which holds the fuel or fire in a furnace. (c) A crucible. (d) A solderer's furnace.
 Fire raft, a raft laden with combustibles, used for setting fire to an enemy's ships.
 Fire roll, a peculiar beat of the drum to summon men to their quarters in case of fire.
 Fire setting Mining, the process of softening or cracking the working face of a lode, to facilitate excavation, by exposing it to the action of fire; -- now generally superseded by the use of explosives. --Raymond.
 Fire ship, a vessel filled with combustibles, for setting fire to an enemy's ships.
 Fire shovel, a shovel for taking up coals of fire.
 Fire stink, the stench from decomposing iron pyrites, caused by the formation of hydrogen sulfide. --Raymond.
 Fire surface, the surfaces of a steam boiler which are exposed to the direct heat of the fuel and the products of combustion; heating surface.
 Fire swab, a swab saturated with water, for cooling a gun in action and clearing away particles of powder, etc. --Farrow.
 Fire teaser, in England, the fireman of a steam emgine.
 Fire water, a strong alcoholic beverage; -- so called by the American Indians.
 Fire worship, the worship of fire, which prevails chiefly in Persia, among the followers of Zoroaster, called Chebers, or Guebers, and among the Parsees of India.
 Greek fire. See under Greek.
 On fire, burning; hence, ardent; passionate; eager; zealous.
 Running fire, the rapid discharge of firearms in succession by a line of troops.
 St. Anthony's fire, erysipelas; -- an eruptive fever which St. Anthony was supposed to cure miraculously. --Hoblyn.
 St. Elmo's fire. See under Saint Elmo.
 To set on fire, to inflame; to kindle.
 To take fire, to begin to burn; to fly into a passion.


 on fire
      adj : lighted up by or as by fire or flame; "forests set ablaze
            (or afire) by lightning"; "even the car's tires were
            aflame"; "a night aflare with fireworks"; "candles
            alight on the tables"; "blazing logs in the fireplace";
            "a burning cigarette"; "a flaming crackling fire";
            "houses on fire" [syn: ablaze(p), afire(p), aflame(p),
             aflare(p), alight(p), blazing, burning, flaming,
             on fire(p)]