What TIL Means on Reddit

TIL is just one of the acronyms popular on social media

An illustration of how TIL is used on a reddit screen.

If you're active on the social news and discussion website Reddit, you've probably seen the acronym TIL in the titles of posts. TIL gets its name from a subreddit called Today I Learned where visitors learn something new through posts made by other Reddit users.

TIL stands for:

Today I Learned

Because of its popularity, TIL is also used in other contexts such as instant messaging, emails, and other social media websites.

How TIL Is Used on Reddit

Reddit members use TIL in the titles of their postings when they discover something amazing about the world; for example, something that contradicts common knowledge or a fact that is particularly important and of interest to readers. 

TIL is a slang way of saying, "Pay attention: This might be good information for you" or "You might find this interesting." It's also common to see TIL used in the comments section on Reddit when a user wants to express that an article or someone else's comment was new information to them. 

Examples of TIL in Use

Example 1

"TIL that most soldiers who commit suicide have never seen combat."

Example 2

"TIL that Pope Francis and Pope John Paul the Second are honorary members of the Harlem Globetrotters."

Example 3

"TIL the earth was almost struck by another asteroid last week, but it never made the news."

Example 4

"TIL the patent for the fire hydrant was lost in a patent office fire."

Example 5

"TIL that Denzel Washington has a deformed hand."

Example 6

"TIL the first can opener was patented on January 5, 1858, 50 years after the can was invented. Prior to its invention, people used hammers and chisels to open cans."

Example 7

"TIL that most millennials have less than $1,000 in savings."

Example 8

"TIL that male puppies let female puppies win when playing to keep the game going."

TIL Isn't Limited to Reddit

Although TIL is most often seen on Reddit, it may also appear on other social media websites, such as Facebook and Twitter, where it means the same thing as it does at Reddit. Terms on the ever-growing list of acronyms used as shorthand on the internet also show up in emails, text messages, and social posts.

Digital culture has spilled over into daily life, and many people use some of these expressive internet terms in daily conversation. Perhaps the most widespread crossover terms are LOL (laughing out loud) and OMG (oh my god). To date, TIL hasn't made that transition.