fire meaning
EN
[ˈfaɪ̯ə(ɹ)] [ˈfaɪ̯ɚ] [ˈfɑːɚ] [-aɪə(ɹ)] 
US WFire
- Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. Slower oxidative processes like rusting or digestion are not included by this definition.
- The flame is the visible portion of the fire. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.
- Fire in its most common form can result in conflagration, which has the potential to cause physical damage through burning. Fire is an important process that affects ecological systems around the globe.
EN FIRE 
- NounPLfires
- (uncountable) A (usually self-sustaining) chemical reaction involving the bonding of oxygen with carbon or other fuel, with the production of heat and the presence of flame or smouldering.
- (countable) Something that has produced or is capable of producing this chemical reaction, such as a campfire.
- We sat around the fire singing songs and telling stories.
- (countable) The often accidental occurrence of fire in a certain place.
- There was a fire at the school last night and the whole place burned down.
- During hot and dry summers many fires in forests are caused by regardlessly discarded cigarette butts.
- (uncountable, alchemy, philosophy) The aforementioned chemical reaction of burning, considered a one of the the Classical elements or basic elements of alchemy.
- (countable, Britain) A heater or stove used in place of a real fire (such as an electric fire).
- (countable) The elements necessary to start a fire.
- The fire was laid and needed to be lit.
- (uncountable) The bullets or other projectiles fired from a gun.
- The fire from the enemy guns kept us from attacking.
- Strength of passion, whether love or hate.
- Liveliness of imagination or fancy; intellectual and moral enthusiasm.
- Splendour; brilliancy; lustre; hence, a star.
- (countable) A button (on a joypad, joystick or similar device) usually used to make a video game character fire a weapon.
- Press fire to fire the gun.
- (uncountable) A (usually self-sustaining) chemical reaction involving the bonding of oxygen with carbon or other fuel, with the production of heat and the presence of flame or smouldering.
- VerbSGfiresPRfiringPT, PPfired
- (transitive) To set (something) on fire.
- (transitive) To heat without setting on fire, as ceramic, metal objects, etc.
- If you fire the pottery at too high a temperature, it may crack.
- They fire the wood to make it easier to put a point on the end.
- (transitive) To drive away by setting a fire.
- (transitive) To terminate the employment contract of (an employee), especially for cause (such as misconduct or poor performance).
- (transitive) To shoot (a device that launches a projectile or a pulse of stream of something).
- We will fire our guns at the enemy.
- He fired his radar gun at passing cars.
- (intransitive) To shoot a gun, a cannon or a similar weapon.
- Don't fire until you see the whites of their eyes.
- His nail gun fired about twenty roofing nails a minute.
- (transitive, sports) To shoot; to attempt to score a goal.
- Andrey Arshavin equalised with a superb volley into the corner before Nicklas Bendtner coolly fired Arsenal in front.
- (intransitive, physiology) To cause an action potential in a cell.
- When a neuron fires, it transmits information.
- (transitive) To forcibly direct (something).
- He answered the questions the reporters fired at him.
- (intransitive, computer sciences, software engineering) To initiate an event (by means of an event handler).
- The event handler should only fire after all web page content has finished loading.
- To inflame; to irritate, as the passions.
- to fire the soul with anger, pride, or revenge
- To animate; to give life or spirit to.
- to fire the genius of a young man
- To feed or serve the fire of.
- to fire a boiler
- To light up as if by fire; to illuminate.
- (farriery) To cauterize.
- (intransitive, dated) To catch fire; to be kindled.
- (intransitive, dated) To be irritated or inflamed with passion.
- (transitive) To set (something) on fire.
- Adjective
- (slang) Great, amazing, extraordinary, dope.
- That shit is fire, yo!
- (slang) Great, amazing, extraordinary, dope.
- More Examples
- Used in the Middle of Sentence
- Doghair stands result from too many pine trees regenerating following fire or clearcutting which opens the forest canopy.
- He has been the master of the fire sale, swooping in to snap up bargains in the midst of panics and sell-offs.
- He got the drop on them and took three of them out before they could fire a shot.
- Used in the Beginning of Sentence
- Fire trucks were parked everywhere: a new arrival was being carefully backed around the stacked pallets to add some new waterpower.
- Fire peels the wiggeries away from them [facts] — Carlyle.
- Used in the Ending of Sentence
- "Who'd a thort there'd 've been any of the warmints about, whin we took sich pains with our fire.
- That striker has scored four goals so far - he's on fire!
- Those two met last Saturday at the party, and because they were both into juggling they get on like a house on fire.
- Used in the Middle of Sentence
Definition of fire in English Dictionary
- Part-of-Speech Hierarchy
- Adjectives
- Uncomparable adjectives
- Uncomparable adjectives
- Nouns
- Countable nouns
- Singularia tantum
- Uncountable nouns
- Uncountable nouns
- Countable nouns
- Verbs
- Ergative verbs
- Intransitive verbs
- Transitive verbs
- Ergative verbs
- Adjectives
Source: Wiktionary
Grammatically, this word "fire" is an adjective, more specifically, an uncomparable adjective. It's also a noun, more specifically, a countable noun and a singularia tantum. It's also a verb, more specifically, an ergative verb, an intransitive verb and a transitive verb.