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Showing results for combust. Search instead for To+Rust.
Synonyms

combust

American  
[kuhm-buhst] / kəmˈbʌst /

verb (used with or without object)

  1. to burn.


combust British  
/ kəmˈbʌst /

adjective

  1. astrology (of a star or planet) invisible for a period between 24 and 30 days each year due to its proximity to the sun

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. chem to burn

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of combust

1325–75; Middle English < Latin combūstus (past participle of combūrere to burn up, equivalent to com- com- + -ūs- variant stem of ūrere to burn + -tus past participle suffix; -b- by misanalysis of ambūrere, another derivative, as am- + -būrere )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But they have downsides—costly materials, a China-dominated supply chain that concerns Western governments and a tendency to combust if you’re not careful.

From The Wall Street Journal • Dec. 11, 2025

Even five World Cups in, she cannot hold back the tears at the national anthem, and looks like she will combust with passion at each wicket she claims.

From BBC • Nov. 1, 2025

Although neither live in California, they are familiar with its topography, its devil winds and hillsides ready to combust, and their message was clear.

From Los Angeles Times • Feb. 14, 2025

"Modern landfill facilities already capture, upgrade and combust their gas emissions for electricity generation, however, our process creates a much more environmentally impactful and commercially valuable product," he said.

From Science Daily • Apr. 30, 2024

Seriously, I feel like I'm about to combust.

From "Simon vs. the Homo Sapiens Agenda" by Becky Albertalli

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