Read along with the three podcasts, or open the full dictionary entry for Reef for the definition, Arabic meaning, synonyms and example sentences.
Narrator: Today's word is "Reef" — noun, pronounced /riːf/, with the stress on "reef".
Narrator: A reef is a line of rocks, sand or coral lying just below or at the surface of the sea.
Narrator: In plain English, it is an underwater ridge.
Narrator: It comes from Old Norse rif, a rib.
Narrator: A common collocation is "coral reef", which describes a living structure built by tiny animals.
Narrator: It differs from "island", because an island stands above water, while a reef lies near the surface.
Narrator: In sailing, to reef a sail is to reduce its size in strong wind.
Narrator: Marine biology, diving, sailing and climate science all rely on the word.
Narrator: So remember: a reef is the sea's rocky or living ridge.
Speaker A: Why is the snorkelling so good here?
Speaker B: The coral REEF! It comes from Old Norse for a rib.
Speaker A: So many fish!
Speaker B: Thousands of species.
Speaker A: Example sentences?
Speaker B: "The Great Barrier Reef is huge", geography. "The ship struck a reef", a shipwreck. "Reef the mainsail", sailing.
Speaker A: Common mistakes?
Speaker B: Do not confuse reef with "wreath", and remember the plural is "reefs".
Speaker A: Close relatives?
Speaker B: Shoal is its cousin, atoll its twin, and sandbank an alternative — yet reef keeps its colourful charm!
Speaker B: Let's use "reef" in AI prompts — useful for conservation and dive apps.
Speaker A: How for conservation?
Speaker B: Explain threats.
Prompt: Explain how rising sea temperatures cause coral reef bleaching.
Speaker A: And dive apps?
Speaker B: Plan trips.
Prompt: List five beginner-friendly reef dive sites in the Red Sea with depths.
Speaker A: Could it help sailing?
Speaker B: Yes, for safety.
Prompt: Explain when and how to reef a sail on a small yacht.
Speaker A: One more?
Speaker B: Education.
Prompt: Create a food web diagram description for a coral reef ecosystem.
Reef — meaning in Arabic & definition More R courses GL Dictionary