Supercalifragilisticexpialidocious

AONE

Think of the first letters in order when this famous word is broken into its four longest recognizable segments.

The word "Supercalifragilisticexpialidocious" is famously long, but the answer hides in its first letters. Take the initials of each syllable—Super Uper Per Er Cali Ali Li Istic Expi Ali Docious—and you get S-U-P-E-R-C-A-L-I-F-R-A-G-I-L-I-S-T-I-C-E-X-P-I-A-L-I-D-O-C-I-O-U-S. Now, look at the first letters of those initials (S, U, P, E, etc.) and say them out loud—they sound like "A ONE," which is how you arrive at the answer. It’s a layered wordplay trick where the clue’s length distracts from the simple pattern buried inside.