| Meaning | No need to open |
|---|---|
| Type | Acronym |
| Usage | Online Only (chat, messaging, e-mail) |
| Comments | NNTO may be used in e-mail communication to indicate that a message doesn't need to be opened. This usually means the subject of the message is clear enough, e.g. "Thanks, I received the document. NNTO." |
| Updated | October 29, 2009 |