reef

Từ điển WordNet v3.1 - WordNet Dictionary

I - noun

1. a submerged ridge of rock or coral near the surface of the water (Freq. 1)
• Derivationally related forms:
reefy
• Hypernyms:
ridge
• Hyponyms:
coral reef
2. 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
• Hypernyms:
strip, slip
• Part Holonyms:
sail, canvas, canvass, sheet

II - verb

1. lower and bring partially inboard
- reef the sailboat's mast
• Hypernyms:
lower, take down, let down, get down, bring down
• Verb Frames:
- Somebody ----s something
2. roll up (a portion of a sail) in order to reduce its area
• Hypernyms:
roll up, furl
• Verb Frames:
- Somebody ----s something
3. reduce (a sail) by taking in a reef
• Hypernyms:
shrink, reduce
• Verb Frames:
- Somebody ----s

• Từ đồng nghĩa / Synonyms:
  Witwatersrand, Rand, Reef