Noun Definition

reef

1.Definition: a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese

Related Noun(s):rand, witwatersrand

Category: Places

2.Definition: a submerged ridge of rock or coral near the surface of the water

Category: Objects

3.Definition: one of several strips across a sail that can be taken in or rolled up to lessen the area of the sail that is exposed to the wind

Category: Objects