water cannon

noun

: a large truck-mounted nozzle for directing a high-pressure stream of water (as at a crowd of rioters or demonstrators)

Examples of water cannon in a Sentence

Recent Examples on the Web

About 120 vehicles and pieces of equipment, including aircraft, an unmanned water cannon vehicle and two firefighting robots for hard-to-reach areas, were deployed, along with hundreds of personnel. —ABC News, 21 Mar. 2026

The vehicle carries a powerful water cannon that can fire a focused stream or a wide spray depending on the situation. —Kurt Knutsson, FOXNews.com, 17 Mar. 2026

As angry protesters defied a curfew, police fired water cannon, tear gas and live ammunition at crowds gathered at the parliament complex in Kathmandu. —Rhea Mogul, CNN Money, 13 Mar. 2026

On Saturday, one of those protests turned violent when about 100 hooded protesters broke off from a peaceful march and clashed with police, who responded by firing on them with tear gas and a water cannon. —Los Angeles Times, 10 Feb. 2026

Word History

First Known Use

1891, in the meaning defined above

Rhymes for water cannon

• canon
• fanon
• mannan
• tannin
• olecranon
• trianon