Language development encompasses your child’s emerging reading and writing skills as well as the development of her communication skills, such as listening and speaking. Two year olds typically have a vocabulary of between 70 and 225 different words. Your child will develop language more swiftly if you and other adults engage her in real conversations. Your two year old is learning language by making connections between the words she hears and the meanings of these words.She is now able to put together words to form short sentences and phrases. And while it may be quicker for your child to express herself verbally, sign language can serve as a great outlet for your child to communicate not just her needs but also her feelings.