Jack's words thus far:
Dah - means Dad, Papa. Also means "I am awake and it's time to get up and get me out of the crib." Also means "that" as in "I would very much like to have that...."
Boon - Jack's version of balloon
Nama - this has two meanings; one general and one specific. The general meaning is anything in a picture frame. The specific meaning is one of his grandparents.
chzszzsz - Cheese
Agua, Aguaita - water.
Vroom - car.
Mmmmmmmmm - that's good, reallll good.
Uh-hmmmmm - yes.
Un-unnnn - no.
Uh-oh - Whoops.
Tik ah - Tucker; also means Jake.