ignition
ignition — noun
1. The set of electronic parts in a vehicle that creates a spark to make the fuel b
The set of electronic parts in a vehicle that creates a spark to make the fuel burn so the engine can start running.
Chidi turned the key in the ignition, but the engine only made a clicking sound.
collocation: turn the key in the ignition
The mechanic checked the ignition system and found a loose wire.
collocation: ignition system
Sahil left his keys in the ignition overnight, and the battery went dead.
A faulty ignition switch can prevent the car from starting at all.
Before you call a tow truck, check whether the ignition light comes on.
- ignition system
the full technical term; more precise in formal or repair contexts
- ignition switch
refers specifically to the slot or mechanism where the key is inserted
- starter
the electric motor that cranks the engine, a different but related part
文法句型
the ignition
ignition + noun (system, switch, key)
in the ignition
用法筆記
In everyday speech, 'ignition' often refers to both the physical key slot and the whole electrical starting system. Common verb partners: 'turn', 'switch on/off', 'leave'.
常見錯誤
2. The moment when a substance or material first catches fire, or the process of ma
The moment when a substance or material first catches fire, or the process of making something start to burn.
The campfire wood reached its ignition point after Mira added dry leaves.
collocation: ignition point
Spontaneous ignition of oily rags in a warm garage can cause a serious fire.
collocation: spontaneous ignition
Firefighters said the house fire started from the ignition of old furniture in the basement.
Amira studied the exact temperature at which each material undergoes ignition.
Joaquín dropped a lit match near the gas can, and the fuel vapors reached ignition within seconds.
- combustion
more technical; refers to the chemical reaction itself rather than the initial moment
- kindling
old-fashioned or literary; refers to lighting a fire with small materials
- inflammation
specialised; used mainly in chemistry and medicine (not related to the medical sense)
- extinguishing
the act of putting out a fire
文法句型
ignition of + noun
adjective + ignition (spontaneous, electrical, immediate)
用法筆記
Frequently used in safety warnings, science writing, and technical manuals. Subject is typically a material ('the rags', 'the gas') or a heat source. Often modified by adjectives such as 'spontaneous', 'immediate', 'electrical'.