reef
US /riːf/
UK /riːf/

1.
recife
a ridge of rocks or sand, often of coral, near the surface of the sea
:
•
The ship ran aground on the coral reef.
O navio encalhou no recife de coral.
•
Divers explored the vibrant marine life around the reef.
Mergulhadores exploraram a vibrante vida marinha ao redor do recife.
1.
rizar
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.
Os marinheiros tiveram que rizar as velas à medida que a tempestade se aproximava.
•
We decided to reef the main sail to reduce speed.
Decidimos rizar a vela mestra para reduzir a velocidade.