noun

reef

reef

We went snorkelling on the coral reef.

We went snorkeling on the coral reef.

The ship struck a hidden reef.

The ship struck a hidden reef.

a reef a line of rocks or sand near the surface of the sea The ship struck a hidden reef.

a coral reef a reef made of coral We went snorkeling on the coral reef.

Synonyms: shoal, sandbar, ridge

From Old Norse 'rif' meaning 'rib, reef'. The sense 'reef' is due to the rib-like appearance of a reef of rock.

Think of the 'grief' a ship's captain feels when hitting a reef. 'Grief' and 'reef' rhyme.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.