Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
to phrases
English thesaurus
Open Protocol Technology
This HTML5 player is not supported by your browser
abbr., comp., net.
OPT
Open Protocol
:
2 phrases
in 2 subjects
Communications
1
United Nations
1
Add
|
Report an error
|
Get short URL
