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C4

British  

noun

  1. a type of plastic explosive

"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 C4

C20: from C(omposition) 4


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.

See Examples For:

Brands including Ghost and C4 have partnered with confectioners to produce Sour Patch Kids, Swedish Fish and Starburst flavors.

From The Wall Street Journal ● Sep. 15, 2026

A red Seat Leon collided with a Citroen C4 Picasso, driven by Masrob Ali, at about 00:45 GMT.

From BBC ● Jan. 12, 2026

The key to effective defense, experts say, lies in the C4 layer—short for command, control, computing and communication—which identifies intruders and quickly determines the best response.

From The Wall Street Journal ● Oct. 18, 2025

His car, a grey-coloured Citroen C4 was found parked in the layby on the A675, near to Tockholes Road.

From BBC ● Mar. 24, 2025

The C4, on the other hand, has a more intense, needs-to-be-resolved, classic suspension sound.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

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