When your child is 19 months old, you may notice that his growth has slowed down a bit since his first year. Toddlers develop at a much slower rate than babies. Although it may seem like there are some changes on the outside, your child is making daily strides in language development, learning, and cognitive development. Doctors use milestones to tell if your toddler is developing as expected. There is a wide range of normals, so some children may reach certain skills earlier or later than others. In this article, we will provide useful information for parents to understand the language and cognitive development of their 19-month-old.