touch off

verb

touched off; touching off; touches off
Synonyms of touch offnext

transitive verb

1
a
: to provoke or initiate with sudden intensity
the verdict touched off local riots
b
: to cause to explode by or as if by touching with fire
2
: to describe or characterize with precision

Examples of touch off in a Sentence

his obscene comment touched off a heated debate about the need for censorship on live broadcasts
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As San Jose police and other law enforcement agencies converged on the site, authorities say Husien rushed a police sergeant who had just arrived and opened fire, touching off a close-range gunfight in which the sergeant was grazed in the head by a bullet. Robert Salonga, Mercury News, 28 Jan. 2026 Both threats touched off fury in Europe, where governments had spent most of the past year making concessions to Trump on both military spending and tariffs. Doyle McManus, Los Angeles Times, 26 Jan. 2026 Akbarin is a supporter of Mir Hossein Mousavi, the former prime minister of the Islamic Republic whose reformist candidacy for the presidency touched off the 2009 Green Movement. Arash Azizi, The Atlantic, 20 Jan. 2026 The fatal encounter has touched off protests in Minneapolis and calls for accountability for immigration officers, whose tactics have resulted in at least 10 other shootings since September. Kayla Hayempour, NBC news, 18 Jan. 2026 See All Example Sentences for touch off

Word History

First Known Use

1694, in the meaning defined at sense 2

Time Traveler
The first known use of touch off was in 1694

Browse Nearby Words

Cite this Entry

“Touch off.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/touch%20off. Accessed 3 Feb. 2026.

Kids Definition

touch off

verb
: to start by or as if by touching with fire
the announcement touched off riots
Last Updated: - Updated example sentences
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