fire

1 fire /ˈfajɚ/ noun
plural fires
1 fire
/ˈfajɚ/
noun
plural fires
Britannica Dictionary definition of FIRE
1 
[noncount] : the light and heat and especially the flame produced by burning
2 
: an occurrence in which something burns : the destruction of something (such as a building or a forest) by fire
[count]
[noncount]
3 
[count] : a controlled occurrence of fire created by burning something (such as wood or gas) in a special area (such as in a fireplace or stove)
— see also campfire
4 
[noncount] : the shooting of weapons
5 
[noncount] : very heavy or harsh criticism
6 
[noncount] : strong emotion, anger, enthusiasm, etc.
7 
[count] British : a small device that uses gas or electricity to heat a room

baptism of/by fire

— see baptism

fan a fire, fan the fire

— see 2fan

fight fire with fire

— see 1fight

from/out of the frying pan (and) into the fire

— see frying pan

hang fire

— see 1hang

irons in the fire

— see 1iron

light a fire under

— see 3light

like a house on fire

— see 1house

on fire

1 
2 
: feeling very strong enthusiasm, love, etc.
3 
: very successful
— see also set the world on fire at 1world

play with fire

— see 1play

under fire

1 
: being shot at by the enemy
2 
: exposed to criticism : being criticized

where there's smoke, there's fire

or there's no smoke without fire
— see 1smoke
2 fire /ˈfajɚ/ verb
fires; fired; firing
2 fire
/ˈfajɚ/
verb
fires; fired; firing
Britannica Dictionary definition of FIRE
1 
a  : to shoot a weapon
[+ object]
[no object]
— often used figuratively
b  [+ object] : to throw (something) with speed and force
2 
[+ object] : to give life or energy to (something or someone)
3 
[+ object] : to dismiss (someone) from a job — usually used as (be/get) fired
4 
[no object] : to begin working — sometimes used figuratively
5 
[+ object] technical : to heat (a clay pot, dish, etc.) in an oven in order to make it very hard

fire away

informal
— used in speech to tell someone to begin asking you questions

fire back

[phrasal verb]
: to answer someone quickly and usually angrily — often + at

fire off

[phrasal verb]
fire (something) off or fire off (something)
: to write and send (something, such as a letter or memo) in a quick and often angry way

fire up

[phrasal verb]
1 
fire (something) up or fire up (something)
a  : to start (something) by lighting a fire
b  : to cause (something) to start working
2 
fire (someone) up or fire up (someone) : to fill (someone) with energy or enthusiasm — usually used as (be/get) fired up

— firing

noun, plural firings [count, noncount]