If you said this to someone 10 years ago, they'd look at you like you were speaking Klingon. Nowadays, you just sound like an active user of social media.

This is how much Facebook has changed how we talk. In the decade since its birth in February 2004, the social network has introduced numerous terms and phrases to the language of modern life.

Most are common words that Facebook refitted with new meanings. Some have stuck, while others have been forgotten. A few have even been recognized by dictionaries as official pieces of the 21st century lexicon.

Here are nine of the most memorable.

Friend

Until Facebook came along, nobody used the word "friend" as a verb. Now it's not uncommon to ask a new acquaintance to spell their name so you can friend them on Facebook.

Everyone likes to feel popular. That's why some Facebookers, especially in the site's early days, hoarded friends like poker chips (never mind that most of these "friends" were rarely seen co-workers, distant relatives or vaguely remembered classmates from junior high). Nobody really has 583 "friends."

Facebook's "friend" also was the precursor to Twitter's "follower," which makes a user's social contacts sound like members of a cult.

Unfriend

Facebook giveth, and Facebook taketh away. Are you tired of your uncle's political rants? Unfriend him!

By adding an "unfriend" option, Facebook created new shorthand for aborting a friendship or an acquaintance. It's a lot easier to say, "I unfriended Bob" than "I'm not going to be friends with Bob anymore because he annoys me with his daily musings about his toenails."

Unfriending someone is considered a more drastic step than simply tweaking your Facebook settings to block or minimize their posts.

The term was officially welcomed to the digital-age vernacular by the New Oxford English Dictionary, which named "unfriend" its Word of the Year for 2009.

Status update

Years ago, "status" was a measure of someone's social or professional standing. Then Facebook began asking users to post updates on their thoughts or activities, and "updating your status" suddenly meant more than just moving to a better neighborhood.

To prompt updates, Facebook first asked users, "What are you doing right now?" When that produced too many mundane reports -- "Sally is eating toast!" -- Facebook changed the update question in 2009 to the broader, "What's on your mind?"

Like

Few things have sparked more debate on Facebook than the "Like" button, which debuted in 2009 and soon spread to partner sites. Suddenly, with a quick click you could endorse your friends' updates, jokes and cute-kid pictures.

Cynics, lamenting what they saw as Facebook's forced cheerfulness, unsuccessfully asked for a "Dislike" button.

Instagram, Pinterest and other social networks also adopted the Like model for favoring posts, although they used a heart symbol instead of a Like thumb. (You Like me right now! You Like me!)

All this made "Like" a noun as well as a verb, as users began collecting Likes as a measure of engagement and popularity. As in, "I can't believe my cute picture of Fluffy in her Easter bonnet got only three Likes."