reef
US /riːf/
UK /riːf/

1.
terumbu
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 terkandas di terumbu karang.
•
Divers explored the vibrant marine life around the reef.
Penyelam meneroka kehidupan marin yang bersemangat di sekitar terumbu.
1.
menggulung 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 pelayar terpaksa menggulung layar apabila ribut menghampiri.
•
We decided to reef the main sail to reduce speed.
Kami memutuskan untuk menggulung layar utama untuk mengurangkan kelajuan.