I will forget all too quickly, so while I still remember, here is what Rachel is saying at 15 months. This is not an exhaustive list, merely the items I can remember at the moment. Mentally insert exclamation points at the end of everything; that's her usual tone:
Bah - ball
Babby - blankie or baby (she sometimes pronounces baby correctly, "beybee")
Badoo or bajoo - balloon
Banah or badah - banana
Moo - cow or moo
Wuh wuh wuh - dog or woof (often accompanied by panting)
Tee tah - Kitty cat (any feline, ferocious breeds included, often other similar looking animals like wolves)
Wada or Dadah - Water
Much - milk
Nigh nat - Night night (which to her might just mean she wants to nurse)
Nah nee - Natalie
Mamee - Mommy
Dadee or Datee - Daddy
No
Yeah
Noh - nose (more of a drawn out "no", with eyes focused and/or pointing to a nose)
Ai - eye(s)
Mau - mouth or meow, depending on context
H(y)ep, I nee h(y)ep - Help, Up or Down (command)
Doodoodoo! Leetherleetherleether! - favorite babbles
Natalie loves that Rachel is now talking, and she likes to giggle and say, "Rachel say that! Rachel say Nanee!"
Rachel definitely understands and communicates much more than what this word list would indicate. For example, she goes to the cabinet where I keep the girls' plates, cups and bowls, she picks up a cup and carries it to me saying "enh! enh! enh!" I ask, "You want water?" Rachel smiles and says "yeah!" and happily drinks when I give her a little water in the cup.
EDIT
Rachel just woke up and reminded me of more words that she knows:
sh or wish - fish (accompanied by ASL sign for fish, one of the few signs she produces, though she seems to understand several)
apoo - apple
aboo, abee - open (command, as in, "open this!")
wowuh - flower
