spark-plug
Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.
Letters
10 characters
Language
English
word origin
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Detailed reference entry for the English word "spark-plug", 10-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "spark-plug" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "spark-plug" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
spark plug is aEnglishnoun. It means: The part of some internal combustion engines which forms a high-voltage electric spark which ignites the fuel-air mixture to begin the power stroke. (Petrol engines have spark plugs. Diesel engines...
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Browse all word comparisons →| Property | Value |
|---|---|
| Headword | spark plug |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Frequency rank visualization
Spelling & Dictionary Insight
The English entry for spark plug is 10 letters long, classified as anoun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader.Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
No frequent misspelling variants are recorded for spark plug in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
No explicit etymology string is stored for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is spark plug, spelled S-P-A-R-K- -P-L-U-G, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1The part of some internal combustion engines which forms a high-voltage electric spark which ignites the fuel-air mixture to begin the power stroke. (Petrol engines have spark plugs. Diesel engines do not have them because the heat from their high compression ratios supplies the ignition.)
- 2Someone who is a driving force in new endeavours.
- 3A rod (for cylindrical secondaries) or sphere (for spherical secondaries) of fissile material at the center of the secondary of a multistage thermonuclear weapon, which undergoes nuclear fission when compressed to supercriticality by the imploding secondary, helping to raise the secondary to the pressures and temperatures necessary to ignite nuclear fusion in the secondary's fusion fuel.
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Nearby English words
Other entries that begin with the letter S in our English index: