Fire is the hot, bright flames produced by things that are burning.

Fire or a fire is an occurrence of uncontrolled burning which destroys buildings, forests, or other things.

A fire is a burning pile of wood, coal, or other fuel that you make, for example to use for heat, light, or cooking.

A fire is a device that uses electricity or gas to give out heat and warm a room.

When a pot or clay object is fired, it is heated at a high temperature in a special oven, as part of the process of making it.

When the engine of a motor vehicle fires, an electrical spark is produced which causes the fuel to burn and the engine to work.

If a machine is fired with a particular fuel, it operates by means of that fuel.

If you fire someone with enthusiasm, you make them feel very enthusiastic. If you fire someone's imagination, you make them feel interested and excited.

You can use fire to refer in an approving way to someone's energy and enthusiasm.

If an object or substance catches fire, it starts burning.

If a situation or event catches fire, it begins to be exciting and successful.

If you fight fire with fire, you deal with people attacking or threatening you by using similar methods to the ones that they are using.

If you say that someone has fire in their belly, you are expressing approval of them because they are energetic, enthusiastic, and have very strong feelings.

If something is on fire, it is burning and being damaged or destroyed by an uncontrolled fire.

If you say that someone is on fire, you mean they are very enthusiastic, excited, or passionate about something.

If you say that someone is playing with fire, you mean that they are doing something dangerous that may result in great harm for them and cause many problems.

If you set fire to something or if you set it on fire, you start it burning in order to damage or destroy it.

If you fire up a machine, you switch it on.

If you fire someone up, you make them feel very enthusiastic or motivated.