What does NNTO stand for?

No need to open

May be used in an e-mail subject line to tell the recipient the message doesn't need to be opened.


Subject: Thank you! <NNTO>

Related Slang


Updated March 31, 2014

NNTO definition by Slang.net

This page explains what the acronym "NNTO" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.

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