Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Arabic
Chinese
Czech
Danish
Dutch
English
Finnish
French
German
Greek
Irish
Italian
Japanese
Polish
Portuguese
Russian
Serbian Latin
Spanish
Swedish
Ukrainian
G
o
o
g
l
e
|
Forvo
|
+
Mach number
avia., amer.
The ratio of the speed of an object to the local speed of sound
meteorol., abbr.
M
MACH number
post
4 digit number identifying PSDS input device
(MODS report abbreviation)
Add
|
Report an error
|
Get short URL
|
Language Selection Tips