What does RR stand for in emails?

Reply required

In emails, RR stands for "reply required." When you see RR in an email's subject line or at its end, you should make sure to reply to that email ASAP.

While RR has a variety of alternate meanings, including "reply requested," "read and reply," and "receipt request," all are meant to prompt a reply to a sender's email. Typically, someone who includes RR at the end of their message (or EoM) has sent you urgent or important information. Your reply is meant to confirm that you received the message.


RR: Would you rather fight 100 duck-sized horses or 1 horse-sized duck?

A person who is about to send an email marked RR

Related Slang


Updated December 9, 2020

RR definition by Slang.net

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

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