Selfie, hashtag and tweep are now official, at least in the eyes of Merriam-Webster's New Collegiate Dictionary.

Those social media terms are among the new crop of more than 150 words -- many of them drawn from tech and Internet talk -- added to the 2014 edition of the dictionary.

"So many of these new words show the impact of online connectivity to our lives and livelihoods," said Peter Sokolowski, editor at large for Merriam-Webster. "Tweep, selfie, and hashtag refer to the ways we communicate and share as individuals. Words like crowdfunding, gamification, and big data show that the Internet has change business in profound ways."

Also among the tech-influenced words? Catfish. As in, "a person who sets up a false personal profile on a social networking site for fraudulent or deceptive purposes," according to the dictionary.

Of course, if you want to weigh in on the new words, there's a hashtag for that: #MW2014NewWords.