NNTO
What does NNTO stand for?
No need to open
Example
"Subject: Thank you! <NNTO>"
Related Slang
Usage
✓ Email
Last Updated: March 31, 2014
NNTO definition
This page explains what the acronym "NNTO" means. The definition, example, and related terms listed above have been written and compiled by the Slangit team.
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May be used in an e-mail subject line to tell the recipient the message doesn't need to be opened.