Oprah Winfrey has proudly announced that a catch phrase she made famous has made it into the 2012 edition of Merriam-Webster’s Collegiate Dictionary!

That phrase, having an “aha moment,” is defined as “a moment of sudden realization, inspiration, insight, recognition, or comprehension.”

Oprah made the announcement in a celebratory video which can be watched below. “I always love those moments when I sit down to talk to somebody and they say something that makes me look at life or a situation in a completely different way.” Oprah added, “That is an aha moment for me.”

Merriam-Webster’s Associate Editor and expert lexicographer Kory Stamper actually says the phrase dates back to 1939 when it was used in a psychology textbook. But obviously, it was Oprah who made it a household phrase.

Watch Oprah talk about “aha moment” in the YouTube video clip below: