Meanings
nounspark knock (countable and uncountable, plural spark knocks)
plural spark knocks
- countableuncountableThe sound produced, in an internal combustion engine, by the ignition of the fuel-air mixture before the piston reaches top dead center.
Synonyms: knocking
Synonyms & antonyms
nounThe sound produced, in an internal combustion engine, by the ignition of the fuel-air mixture before the piston reaches top dead center.
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Cite this entry
APA
spark knock. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/spark%20knock
MLA
“spark knock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/spark%20knock. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “spark knock,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/spark%20knock.
Source: spark knock on Wiktionary, CC BY-SA 4.0.