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Definitions

reef

[reef] / rif /
NOUN
underwater or partially submerged ledge
Synonyms


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.

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In one dramatic episode, an American ship, the Philadelphia, was grounded on a reef and captured, but in 1804, the Americans launched a successful mission to rescue her with no casualties.

From Salon Jul. 4, 2026

Cleaner fish remove parasites from larger reef fish and receive a meal in return.

From Science Daily Jun. 20, 2026

Partis, who had been tracking the bird for almost 12 hours, said it was his first time seeing a western reef heron.

From BBC Jun. 9, 2026

Kennedy Shoal is a well-known fishing reef in deep water.

From Barron's May 24, 2026

It was so full of minerals that rough, chalky encrustations had built up along the edges, like a coral reef.

From "The Glass Castle" by Jeannette Walls

To reach those ancient reefs, the team had to cross extensive layers of rock known as turbidites.

From Science Daily Jun. 26, 2026

The United Nations Scientific Advisory Board released a report outlining the dangers of crossing irreversible tipping points, from ice melt that would further raise sea levels to the collapse of coral reefs and Amazon decline.

From Barron's Jun. 23, 2026

Oceanographers at the state-controlled Chinese Academy of Sciences said the platform was a temporary scientific research facility studying the shoal’s coral reefs.

From The Wall Street Journal Jun. 23, 2026

Wildfires, floods, melting ice caps, heat waves, the bleaching of ocean reefs.

From Los Angeles Times Jun. 18, 2026

Fish, langosta, mussels, or the eggs from sea urchins, those small, black round sea nnfmnfa with sharp spines that attach themselves to the reefs.

From "The Cay" by Theodore Taylor

Not one platform off California has been reefed.

From Economist Jun. 12, 2014

Divers and many fishermen want more to be reefed; shrimpers complain that reefs prevent them from dragging nets across parts of the ocean floor.

From Economist Jun. 12, 2014

The firm has only reefed 12 of the 60 Gulf of Mexico platforms it has decommissioned.

From Economist Jun. 12, 2014

It was a ribbon chute made of concentric rings of strong fabric 2 in. wide, and at first it was reefed by a band around it to lower the shock of opening.

From Time Magazine Archive

There was a sailboat with rusty red sails reefed around the booms of the fore and aft masts.

From "Hole in My Life" by Jack Gantos

Part of that action is Patten’s realization that the sailor’s standard storm tactics—including reefing, heaving-to and lying a-hull—will not work in such an intense blow.

From The Wall Street Journal Dec. 8, 2025

State coffers gain: oil firms typically hand over half the money they save by reefing.

From Economist Jun. 12, 2014

The federal Bureau of Safety and Environmental Enforcement urges states to issue reefing permits.

From Economist Jun. 12, 2014

But the science regarding the safety of artificial reefing is still being developed.

From Time Magazine Archive

Already reefing from the floods, Cahokia never recovered from the earthquake.

From "1491" by Charles C. Mann




Vocabulary lists containing reef


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