Dictionary.com
Thesaurus.com
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

A golf pro can have an immaculate swing on the range, then go out and combust in a tournament.

From Los Angeles Times • Nov. 7, 2025

But here's the kicker - Sabalenka's tendency to combust at a critical juncture means only three of those have resulted in titles.

From BBC • Sep. 4, 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

She felt that if she got any closer to him, all the molecules in her body might combust.

From "The Mark of Athena" by Rick Riordan

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "combust" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com