PERI: Lexical transcendentalism?

DOCTOR: The study of and necessarily the search for the mythical longest word in the cosmos.

PERI: So what?

DOCTOR: So indeed, Peri. So is a very short word, but the dictionary provides for it dozens of distinct meanings, where as a much longer word like honorificabilitudinitatibus…

PERI: Not so many.

DOCTOR: Well, I can only think of three, offhand. The argument goes that the longer a word, the less often that word is used and therefore the more precisely focused its range of meanings. Are you with me?

PERI: So-so.

DOCTOR: Well, extend the length of the word to infinity, as the transcendentalists theorize, and, well, no one knows what it means.

PERI: Say it ain’t so!

DOCTOR: Peri, this is serious.

PERI: So sorry.

DOCTOR: Don’t be such a so-and-so.