I'm not sure what should be expected by DD's age (16 months) but her language seems to be progressing reasonably well. We have counted upwards of 50 words that she can say and she clearly knows an awful lot more as she is running out of things she can't point to in her books. But is there something we could be doing to encourage her to translate more of what she knows into words she can say? She has got used to responding to most questions by pointing at things - are there any techniques we could be using to encourage her speech?
Just bumping for you... and saying that I will fall over with shock if any child of mine ever says 50 words by 16 months (expecting No. 4, and anything is possible, I suppose). My other kids struggled to get 50 words by 2yo. Certified chatterboxes by 5-6yo.