Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

ignition

play
noun ig·ni·tion \ig-ˈni-shən\

Simple Definition of ignition

  • : the electrical system in an engine that causes the fuel to burn so that the engine begins working

  • : the device that is used to start a car's engine

  • : the act of causing something to start burning : the act of igniting something

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ignition

  1. 1 :  the act or action of igniting: as a :  the starting of a fire b :  the heating of a plasma to a temperature high enough to sustain nuclear fusion

  2. 2 a :  the process or means (as an electric spark) of igniting a fuel mixture b :  a device that activates an ignition system (as in an automobile) <put the key in the ignition>

Examples of ignition in a sentence

  1. There's a problem with the car's ignition.



1612

First Known Use of ignition

1612


IGNITION Defined for Kids

ignition

play
noun ig·ni·tion \ig-ˈni-shən\

Definition of ignition for Students

  1. 1 :  the act of causing something to start burning

  2. 2 :  the process or means (as an electric spark) of causing the fuel in an engine to burn so that the engine begins working

  3. 3 :  a device that is used to start a motor vehicle <Put the key in the ignition.>





Seen and Heard

What made you want to look up ignition? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a simplified speech bridging languages

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

confounded-person

Which is a synonym of indolent?

lazy frenetic philistine melancholy
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ