Noun | 1. | ![]() |
2. | Reef - a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese Synonyms: Witwatersrand, Rand | |
Verb | 1. | reef - lower and bring partially inboard; "reef the sailboat's mast" |
2. | reef - roll up (a portion of a sail) in order to reduce its area | |
3. | reef - reduce (a sail) by taking in a reef |