Word check
Is Supercalifragilisticexpialidocious a Word?
Supercalifragilisticexpialidocious does not appear in the word list Wordton searches, ENABLE plus a curated modern supplement, so the finder will not return it and it will not play in games that use that list.
Not in this list
No entry in the list, and so no definition to show. What the word is doing in English is below.
How to use it
It comes from the 1964 film Mary Poppins, where it is explicitly a nonsense word meaning roughly wonderful, invented to be said when you have nothing else to say. Some general dictionaries do record it, precisely because it became famous enough to need documenting. Word-game dictionaries are a different matter: at 34 letters it exceeds the length limits most of them impose, so it will not be found in the list this site searches. It is a real cultural artefact and an unusable playing word at the same time.
Checking a different word?
The checker gives the same verdict for any word, with its tile score and a one-line definition where one exists. Or browse every question in this set.