I have a tradition of writing down all the words each child can say at 17-18 months.  There are some standard ones, "banana", "shoes", but then there seem to be words specific to each child's personality.

K's unique words were "hat", "let's go", "clean-up".
J's unique words were "bear", "frog", "diego", "tickle"
I's unique words were "butterflies", "pizza", "TV on", "bite" (the name of I's blanket because she chews on it).

I am definitely  noticing a parenting trend from going places and cleaning up (with 1 child) to pizza and TV with 3 children!  Hmmm....

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