1. Children’s Language Development – Analyzing how children’s linguistic features at this stage enable them to participate in family interactions. 2. Application of Linguistic Frameworks – Evaluating phonology, lexis, grammar, and syntax in child language acquisition. 3. Theories of Language Development – Applying key language acquisition theories to interpret the progression of children’s communication skills. 4. Social and Pragmatic Functions – Assessing how children use language pragmatically in different contexts within the family. 5. Lexical and Semantic Development – Examining vocabulary expansion and meaning construction in early communication. 6. Interactional Strategies – Investigating the influence of caregiver speech and interaction styles on children′s language learning.