Not even "Mama" or "Dada"? How long have you had her? I ask this because I too had a little girl who was just 24 months when she came onto my care 2 months ago...she had about 5 words, but had been using Sign language/guestures/gibberish to communicate at home. She has improved a lot (now has about 20 words) with immersion in with the other kids. Perhaps time will tell? One thing I've learned with 2 year olds is that it's on their own time