How did Supercalifragilisticexpialidocious become a word?

"Supercalifragilisticexpialidocious" is not a real word in the sense of having a pre-existing definition or meaning in the English language. It was created for the 1964 movie *Mary Poppins* by the songwriting duo Richard M. Sherman and Robert B. Sherman.

Here's how it came to be:

* They wanted a word that sounded impressive and nonsensical: The lyrics of the song "Supercalifragilisticexpialidocious" needed a word that would represent something wonderful and impossible to define.

* They used existing sounds and syllables: They combined existing syllables and sounds, creating a long and playful word.

* It gained popularity through the movie: The song and the word became incredibly popular due to the movie's success and its catchy tune.

* It became a part of popular culture: Although not a real word in the traditional sense, "Supercalifragilisticexpialidocious" is now widely recognized and used in everyday language, especially when expressing something wonderful or extraordinary.

While it's not in dictionaries as a "real" word with a specific meaning, it's a testament to the power of creative writing and the way language can evolve through popular culture.