Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
Danish
English
Finnish
French
Greek
Italian
Portuguese
Russian
Spanish
Swedish
Ukrainian
Uzbek
G
o
o
g
l
e
|
Forvo
|
+
English thesaurus
extremely low frequency
abbr., astronaut., mil.
ELF
(3 Hz - 3 kHz)
abbr., scottish
ELF
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
