ignition
part of speech
noun (ignition, an ignition; ignitions)
meaning for a pupil
1) Ignition is the moment something catches fire or starts burning. tree →
2) The ignition in a car is the switch, often turned with a key or a button, that starts the engine. tree →
3) (science) Ignition is the start of burning in an engine or rocket when fuel is lit. tree →
sense in the lessons
In science lessons on fire, ignition needs the three parts of the fire triangle: fuel, heat and oxygen. In everyday life Dad «turns the key in the ignition». In rocket launches the countdown ends with «ignition» and «lift-off». Phrases: «turn the key in the ignition», «point of ignition», «ignition key», «ignition!».
examples
- Mum turned the key in the ignition and the car started. tree →
- «Three, two, one, ignition, lift-off!» tree →
- Never leave the keys in the ignition. tree →
- A spark caused the ignition of the gas. tree →
- Ignition needs heat, fuel and oxygen. tree →
- The firefighters found the point of ignition in the kitchen. tree →
- The rocket's engines roared at ignition. tree →
note
Noun from the verb «ignite» (to set on fire). Spelled with «-tion». Usually uncountable for the act; countable for the car switch («the ignition»). Safety: sources of ignition (matches, sparks, flames) must be kept away from petrol and gas.
Trees and pragmatics
Every meaning and example of «ignition» parsed by Mova, each sentence with its dependency tree and frames.