What characterizes the post-telegraphic stage of speech development?

The post-telegraphic stage is characterized by the inclusion of more grammatical words and the development of complex syntax. During this stage, children move beyond the telegraphic speech of previous stages, which typically involved short, two- or three-word sentences that conveyed meaning with just the essential words, often omitting function words such as articles and prepositions. In the post-telegraphic stage, children begin to utilize a broader range of vocabulary, including nouns, verbs, adjectives, adverbs, and more grammatical constructs. This enables them to form longer, more intricate sentences that exhibit a growing understanding of language rules. Their ability to express more nuanced thoughts and relationships between ideas signifies a significant leap in their language development, indicating greater cognitive processing and a richer grasp of linguistic patterns.