The document discusses the key components of language:
- Semantics refers to the system of meanings expressed by words and phrases. Learning new words is difficult for children.
- Phonology is the system of speech sounds in a language. Children learn the phonemes of their native language.
- Morphology studies the smallest units of meaning, like morphemes and affixes, which are critical to vocabulary development.
- Syntax involves combining words and morphemes into sentences according to grammatical rules.
- Pragmatics governs social uses of language based on context, turn-taking, and shared understanding between speakers.