sparkplug: meaning, definition, pronunciation and examples
C2technical, informal (in extended sense)
Quick answer
What does “sparkplug” mean?
A device in an internal combustion engine that ignites the compressed fuel-air mixture by producing an electric spark.
Audio
Pronunciation
Definition
Meaning and Definition
A device in an internal combustion engine that ignites the compressed fuel-air mixture by producing an electric spark.
A person or thing that provides energy, enthusiasm, or a catalyst for action within a group or situation.
Dialectal Variation
British vs American Usage
Differences
The primary technical meaning is identical and the word is spelled as one compound in both varieties. The figurative use is slightly more common in American English.
Connotations
In its figurative sense, it strongly connotes energetic leadership, initiative, and being a driving force. It is not used pejoratively.
Frequency
The technical term is common in both varieties. The figurative sense is recognized but less frequent, appearing more in sports journalism, business contexts, and motivational speech.
Grammar
How to Use “sparkplug” in a Sentence
The sparkplug [VERB] the mixture.[NOUN/PROPER NOUN] is the sparkplug of the [TEAM/ORGANIZATION].to act as a sparkplug for [EVENT/PROJECT]Vocabulary
Collocations
Examples
Examples of “sparkplug” in a Sentence
verb
British English
- Her leadership helped sparkplug the community project into life.
American English
- The coach needs a player who can sparkplug the offense in the second half.
adjective
British English
- He has a real sparkplug personality, always full of ideas.
American English
- She gave a sparkplug performance that energized the whole cast.
Usage
Meaning in Context
Business
"She was the sparkplug behind the new marketing campaign, generating incredible enthusiasm."
Academic
Rare, except in engineering contexts discussing ignition timing or combustion efficiency.
Everyday
"I need to buy new sparkplugs for the car." "He's the sparkplug of our local football team."
Technical
"A misfire was traced to a cracked ceramic insulator on the third sparkplug."
Vocabulary
Synonyms of “sparkplug”
Strong
Neutral
Vocabulary
Antonyms of “sparkplug”
Watch out
Common Mistakes When Using “sparkplug”
- Misspelling as 'spark plug' (less common but acceptable) or 'spark-plug' (hyphenated form is dated).
- Using the figurative sense in overly formal contexts where it may seem clichéd.
FAQ
Frequently Asked Questions
No, 'spark plug' is a common variant, but 'sparkplug' as a single closed compound is the form listed in many modern dictionaries.
Yes, especially in American English, it can be used informally as a verb meaning 'to energize or catalyze,' though it is not the most common usage.
It is almost exclusively positive, describing someone who provides vital energy and initiative.
They are very close synonyms. 'Sparkplug' often implies a more visible, energetic, and personal force, while 'catalyst' can be a more impersonal event or condition that enables change.
A device in an internal combustion engine that ignites the compressed fuel-air mixture by producing an electric spark.
Sparkplug is usually technical, informal (in extended sense) in register.
Sparkplug: in British English it is pronounced /ˈspɑːkplʌɡ/, and in American English it is pronounced /ˈspɑrkˌpləɡ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “to be the sparkplug of the team”
- “to sparkplug an initiative”
Learning
Memory Aids
Mnemonic
Think of a PLUG that creates a SPARK. In a team, the 'sparkplug' is the person who 'ignites' everyone's energy.
Conceptual Metaphor
ENERGY/ENTHUSIASM IS FIRE (The sparkplug ignites the fire/enthusiasm). A PERSON IS A MACHINE PART (The essential, initiating component).
Practice
Quiz
In a figurative sense, what is the primary role of a 'sparkplug'?