canal

American  

[kuh-nal] / kəˈnæl /

noun

1. an artificial waterway for navigation, irrigation, etc.

2. a long narrow arm of the sea penetrating far inland.

3. a tubular passage or cavity for food, air, etc., especially in an animal or plant; a duct.

4. channel; watercourse.

5. Astronomy. one of the long, narrow, dark lines on the surface of the planet Mars, as seen telescopically from the earth.

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verb (used with object)

canalled, canaled, canalling, canaling

1. to make a canal through.

canal British  

/ kəˈnæl /

noun

1. an artificial waterway constructed for navigation, irrigation, water power, etc

2. any of various tubular passages or ducts

   the alimentary canal

3. any of various elongated intercellular spaces in plants

4. astronomy any of the indistinct surface features of Mars originally thought to be a network of channels but not seen on close-range photographs. They are caused by an optical illusion in which faint geological features appear to have a geometric structure

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verb

1. to dig a canal through

2. to provide with a canal or canals

Etymology

Origin of canal

First recorded in 1400–50; late Middle English: “waterpipe, tubular passage,” from Latin canālis, perhaps equivalent to can(na) “reed, pipe” ( see cane) + -ālis -al ¹; canal def. 5 a mistranslation of Italian canali “channels,” the term used by G. V. Schiaparelli

Explanation

A canal is a long, man-made strip of water used for irrigation or boat access to a bigger body of water, like the famous Erie Canal, which connects the Hudson River to Lake Erie. Canal is related to the word channel, and all its different shades of meaning have to do with tunnel shaped spaces that carry liquid from one place to another. Besides man-made irrigation canals, canals that connect boat docks to rivers and oceans, or street-like canals in boat cities like Amsterdam, there are canals in your body, like your nasal canal, or the birth canal you came out of. It's also a verb meaning "to dig a canal."

Example Sentences

Container-shipping operators have suspended services in and around the Strait of Hormuz and the Gulf of Oman, and are re-routing vessels to avoid the Red Sea and Suez Canal.

From The Wall Street Journal • May 7, 2026

The Saudi port of Jeddah on the Red Sea is becoming a new regional "hub", where ships from maritime giants MSC, CMA CGM, Maersk and Cosco arrive via the Suez Canal.

From Barron's • May 1, 2026

The sinking has damaged part of the Friant-Kern Canal, a major water conduit for farms, reducing its carrying capacity and requiring $326 million in repairs.

From Los Angeles Times • May 1, 2026

The analysts are expecting a “slow normalization” based on benchmarking today’s energy shock against every major one that’s taken place in the Middle East since the closure of the Suez Canal in 1956.

From MarketWatch • Apr. 20, 2026

What happened was that the Khedive hired a sculptor to make that grand statue to greet ships as they entered the Suez Canal.

From "The (Mostly) True Story of Cleopatra's Needle" by Dan Gutman