Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Arabic
Chinese
Czech
Danish
Dutch
English
Finnish
French
German
Greek
Italian
Japanese
Polish
Portuguese
Russian
Spanish
Swedish
G
o
o
g
l
e
|
Forvo
|
+
Sudden Ionospheric Disturbance
IT, abbr.
SID
(Space)
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
