- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
angstrom unit
-
outrun
-
acetic acid
-
operate
-
come up
-
untempered
-
cliff
-
bistouries
-
currency
-
poet
- 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