- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
rugged
-
golf
-
tweed
-
acknowledgement
-
him
-
absinthe
-
vicinity
-
conspicuous
-
volume
-
ad infinitum
- Hide translation
acoustic buoy
acoustic buoy /əˈkuːstɪk buːi/
noun
-
A buoy that can be heard (at night)
(
acoustic buoy
)
a buoy that can be heard (at night)