on to the big words now

A bit of our after-school conversation from yesterday afternoon: ME:  So tell me, buddy, what letter are you learning this week in preschool?

PARKER: The letter N!

ME:  Oooh that's a good one!  Can you tell me a word that starts with N? (assuming he'd say "nest", or some other smallish word)

PARKER:  (thinking for a minute, then grinning huge) "Negotiations" starts with N!

Oh. My. Stars.  What 5-year-old says words like "negotiations"??