Learner's Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
My Saved Words
Login
×
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Most Popular
My Saved Words
Log in
Learner's Dictionary
reef
5 ENTRIES FOUND:
reef
(noun)
reef knot
(noun)
barrier reef
(noun)
coral reef
(noun)
Great Barrier Reef
(proper noun)
Save
reef
/
ˈ
riːf/
noun
plural
reefs
reef
/
ˈ
riːf/
noun
plural
reefs
Learner's definition of REEF
[
count
]
:
a long line of rocks or coral or a high area of sand near the surface of the water in the ocean
—
see also
barrier reef
,
coral reef
Comments & Questions
Comments & Questions
What made you want to look up
reef
? Include any comments and questions you have about this word.
Please enable JavaScript to view the
comments powered by Disqus.
ASK THE EDITOR
What are the meanings of
especially
and
specially
?
See the answer »
LEARNER'S QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
LEARNER'S WORD OF THE DAY
living
:
a way of earning money
Learn More »