reef
noun
a ridge of rocks or sand, often of coral debris, at or near the surface of the water.
reefs
-
present tense formof reef (3rd person singular).present tense
Used to describe things happening now or regularly.
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.
More than 90 percent of excess heat trapped by greenhouse gas emissions has been absorbed by the oceans, sparing land from warming but at severe cost to marine life, reefs and coastal communities.
From Barron's ● Sep. 10, 2026
The actor reportedly paid $1.75 million for the property after being inspired by a scuba-diving trip to Belize’s coral reefs.
From MarketWatch ● Sep. 1, 2026
More than 450 million years ago, long before dinosaurs appeared and before animals or plants had spread widely across dry land, crinoids were already thriving in some of Earth's earliest coral reefs.
From Science Daily ● Aug. 21, 2026
They fear that any accidents could threaten not just the nearby reefs but that currents could carry spilled oil to coastal wetlands teeming with wildlife.
From BBC ● Aug. 18, 2026
The CIA had told them to expect a sandy approach, but the water here was clogged with razor-sharp reefs.
From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin
