reef
US /riːf/
UK /riːf/

1.
terumbu, karang
a ridge of rocks or sand, often of coral, near the surface of the sea
:
•
The ship ran aground on the coral reef.
Kapal itu kandas di terumbu karang.
•
Divers explored the vibrant marine life around the reef.
Penyelam menjelajahi kehidupan laut yang semarak di sekitar terumbu karang.
1.
mengurangi luas layar, melipat layar
reduce the area of (a sail) by folding or rolling part of it and securing it to the spar or mast
:
•
The sailors had to reef the sails as the storm approached.
Para pelaut harus mengurangi luas layar saat badai mendekat.
•
We decided to reef the main sail to reduce speed.
Kami memutuskan untuk mengurangi luas layar utama untuk mengurangi kecepatan.