- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
envious
-
acinic
-
deoxyephedrine
-
choked
-
31
-
proportional
-
belt
-
deadens
-
collection
-
cross
- Hide translation
SD
SD /ˈes ˈdiː/
noun
-
A state in north central United States
(
Coyote State
, Mount Rushmore State
, S.D.
, SD
, South Dakota
)
a state in north central United States