- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
differ
-
apologise
-
mortgage
-
straighten
-
row
-
heater
-
abu ali al-husain ibn abdallah ibn sina
-
acned
-
sheath
-
achimenes
- 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