Trending Pages
What is a COVIDIOT?
Can sounds give you brain tingles?
What is a man looking for younger girls called?
What is an "Unexplained Drinking Injury (UDI)"?
What does QQ mean?
P911 means parents are watching!
Why does <4 mean "more than love"?
What does DIAMOND HANDS mean?
Send an encrypted message.
Learn all the Snapchat emojis.
MI5
Search our site
What Does MI5 Mean?
MI5 means "Military Intelligence Service 5.""Cyber Speak" Test
You now know what MI5 means, but are you good at Cyber Speak? Well, let's see!

Summary of Key Points
"Military Intelligence Service 5" is the most common definition for MI5 on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.MI5 | |
---|---|
Definition: | Military Intelligence Service 5 |
Type: | Abbreviation |
Guessability: | ![]() 1: Easy to guess |
Typical Users: | ![]() Adults and Teenagers |
Example of MI5 Used in a Text
MI5
Help Us To Improve Cyber Definitions
- Do you disagree with something on this page?
- Did you spot a typo?
- Do you know a slang term that we've missed?