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reef

reef

105 2.0
A long narrow area of rock or coral near the sea surface
  • noun
  • /rif/
translation icon : arrecife
  • So we're inside the reef, but there are waves right outside of the reef.
  • coral reef
  • reef habitat
  • reef ecosystem

So we're inside the reef, but there are waves right outside of the reef.

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Examples

  • During their trip to Australia, they visited the Great Barrier reef and marveled at its natural beauty.

  • Now, I found the plate near the reef just on the other side.

  • Beyond sight of land in deep water, the ship suddenly hit a reef and stuck fast.

  • For a day's charter to the outer reef, we'll need some money up front.

    Fiction book (1991)
  • The fish drew the fishermen who built this village on a coral reef right next to this nursery.

  • There's a reef that cuts it off from the rest of the Caribbean Sea, and you just stand there and watch the waves break with the sun rising behind them.

  • Protected areas have been used effectively for the conservation of coral reefs and other ecosystems.

    Academic text (2011)
  • Recorded accounts indicate the existence of vast reefs with significant structural complexity in bays around the world.

    Academic text (2011)
  • The men steered their boat carefully over the reef and sat with their outboard idling.

    Fiction book (1996)
  • The divers explored the vibrant coral reef, teeming with colorful fish and marine life.

Synonyms

key
vsreef
  • US
80 8.3

A small low island often with sand and surrounded by sea

is long and narrow near the surface rather than a small sandy island
coral reef
vsreef
25 3.1

A ridge of rock in warm shallow sea made by many small sea animals

is a long narrow area of rock or other materials near the sea surface
barrier reef
vsreef
  • Specialized
12 4.1

A long narrow line of coral running parallel to the coast with shallow water between it and the land

is any long narrow rock or animal-built area close to the water surface
skerry
vsreef
  • UK
9.9

A small rocky island near the coast often just above or below the water

is long and narrow near the surface rather than a small isolated rock

Compounds

25 3.1

A ridge of rock in warm shallow sea made by many small sea animals

barrier reef
  • Specialized
12 4.1

A long narrow line of coral running parallel to the coast with shallow water between it and the land

A very large coral reef system off the northeast coast of Australia

A national park in Utah with colorful rocks, canyons, and desert plants and animals

reef line
  • Specialized
8.1

A short rope attached to a sail that sailors use to make the sail smaller in strong wind

reef point
  • Specialized
9.0

A short piece of rope sewn into a sail to make the sail smaller in strong wind

reef squirrelfish
  • Specialized
9.9

A bright red fish that lives in coral reefs and hides by day

reef whitetip shark
  • Specialized
7.1

A shark with white tips on its fins that lives near coral reefs

reef knot
  • Specialized
5.2

A way of tying two rope ends by crossing them left then right to hold bandages or sails

How Big

atoll
9 7.8
barrier reef
  • Specialized
12 4.1
reef
105 2.0
shoal
5 7.9
rock
1.0

Surface Forms

reef singular
reefs plural

Etymology

Reef for the sea comes from an old word meaning 'ridge' or 'bank', so it helps you picture a long, raised line of rock or coral near the water that can be dangerous to ships.