Hart's new words:

Home - as of today, when we came indoors. Well, he just repeated it
- 'ome
Anna - as of a few weeks ago. Whenever the doorbell ring he says
"Anna" in anticipation of seeing her, his PT. It's the first actual
name of a person he has said.
Book - more like 'ook - but definitely denoting books, and wanting to
read them
Meow - more like "mao" whenever he sees a cat
Duck - "guck" upon seeing pictures of ducks or basically any birds