20 Email Acronyms and Abbreviations to Memorize ASAP

Email Acronyms and Abbreviations

Learn them now and spare yourself the D'OH moments for later:

1. NRN - No Reply Necessary 

Indicates that no reply is necessary, which reduces email clutter from replies such as “okay sounds good!”

2. LET - Leaving Early Today

Informs coworkers (usually in group email) you’re leaving early, so they don’t miss you later if they need anything.

3. EOM - End of Message

Keeps all content in the subject line, which saves the recipient time since they don’t have to open the email.

4. PRB - Please Reply By 

Kindly asks the recipient to reply by a certain date and time. Avoids late responses for time-sensitive requests.   

5. HTH - Hope That Helps

Used when responding to someone. Typically when someone thanks you for your help.   

6. WFH - Working From Home

Notifies coworkers you’re working remotely that day.

7. TLTR - Too Long To Read

When someone sends a massive email, but you have little time, TLTR asks the sender to briefly summarize what they need.

8. TL;DR - Too Long; Didnt Read

When sending a massive email, it’s a courtesy to summarize what you need in one sentence, labeling it TL;DR.

9. Y/N - Yes or No?

Saves the recipient time by asking for only a yes or no answer; as it’s not necessary to respond beyond that.

10. OOO - Out of Office

Standard acronym for when you’re out of the office.  

11. EOD - End of Day

Means you’ll be sending something (or you’re asking for something) before the day ends.

12. EOW - End of Week 

Means you’ll be sending something (or you’re asking for something) before the week ends.

13. SFW - Safe For Work

Used when sending a file or article that sounds bad, but it really isn’t. Tells recipient it’s okay to open it.

14. LMK - Let Me Know

Informal way to end an email, asking recipient to let you know their opinion.

15. IMO - In My Opinion

When submitting feedback, a humble way to give feedback without sounding like a opinionated know-it-all.

16. BTW - By The Way

Typically sent after you forget to mention something in a previous email.

17. IDK - I Don't Know

Informal abbreviation typically used in body copy.

18. FWIW - For What It's Worth

A humble way to give feedback on something and not sound like a know-it-all.

19. FYI - For Your Information 

Used when adding a side note to your email.

20. TYT - Take Your Time

Used when you need feedback on something, but it’s not urgent.