My 19mo says: mama, dad (sounds like da), bath (sounds like ba), bathroom (sounds like ba-mmm), maya (sounds like aya), hi, no, baby, backpack and map (the power of Dora and repetition I guess
). He makes cat and dog noises when he sees one. He has a sound for okay. He has also has a sound for thank you and you're welcome.
Otherwise, he points alot. He scrunches up his nose pointing at his diaper when he wants it changed. Brings me a pillow when he wants to nurse.
He also understands everything and if he gets hurt, he'll reenact it for us to be sure we know exactly where we should kiss him better.
I'm not worried because he understands us perfectly and can follow complex instructions. He's finally starting to look interested in talking because he wants to say more to us than please change my diaper and I want to nurse. Those needs he's been communicating very clearly for months so I guess he hasn't had to put words to those.
At that age, his sister Maya was talking in full sentences so it really varies from one kid to the next, within a family.