Out of Office Email Glossary

This table compiles some of the most common email terms used in out-of-office messages and other email communications.

OOOOut of Office
EOMEnd of Message
ETAEstimated Time of Arrival (back in the office)
NRNNo Reply Necessary
AYOBAt Your Own Pace (referring to handling urgent messages)
FYIFor Your Information (can be used to mention a colleague who can be contacted)
CCCarbon Copy
BCCBlind Carbon Copy (useful if including a colleague’s contact without revealing it to recipients)
RTRegards / Best Regards (a more concise closing)
TIAThanks In Advance
PTOPaid Time Off (can be used instead of “vacation” for a more general term)
WFHWorking From Home (useful if you plan to check emails occasionally while out)
OOO AutoreplyOut of Office Autoresponder (more specific than just OOO)
URGENTUse sparingly! To highlight truly urgent messages requiring immediate attention
ROGUEReaching Out Going Elsewhere (informal way to let senders know you won’t be readily available)
BRBBe Right Back
TTYLTalk To You Later
ASAPAs Soon As Possible
TBCTo Be Continued
EODEnd Of Day
TBDTo Be Determined or To Be Decided
NPNo Problem
IMOIn My Opinion
IMHOIn My Humble Opinion
BTWBy The Way
AFAIKAs Far As I Know
FWIWFor What It’s Worth
B4NBye For Now
AFKAway From Keyboard
TILToday I Learned
OTLOut To Lunch
OICOh, I See
ETAEdited To Add (different context from “Estimated Time of Arrival”)
FWDForward
FAQFrequently Asked Questions
YMMVYour Mileage May Vary
AKAAlso Known As
OMWOn My Way
LMKLet Me Know
IDKI Don’t Know
HTHHope That Helps
FWIWFor What It’s Worth
POVPoint Of View
ICYMIIn Case You Missed It
CTACall To Action
IIRCIf I Remember Correctly
Email Glossary

Note: While some of these abbreviations are clear, it’s best to use them sparingly, especially with external contacts who may not be familiar with them.