For a little while now, we've been thinking Ben can say "cat", but weren't sure because a lot of what he babbles fits the situation he's in. "Out!" when he was struggling to get out of his car seat. "I want that!" when reaching for something the other day. But stuff he's not really saying, of course.
But this morning, he looked up, saw Suzie, grinned and yelled "CAT!" Then after we got all excited, he started saying "kitty cat! kitty cat!" over and over. Mike calls the cats "kitties" when talking to Ben, I call them "cats".
So he is now up to three words. "Mama", "Da Da", and "Kitty Cat". Or four, depending how you look at it!