“…It is complex because children's language development in this phase sometimes only takes a short time, and children can master complex languages at their age (Hasanah and Sugito 2020). In addition, at this age, the vocabulary produced by children can reach 50 to 160 or even 2000 words or more (Mulyani et al 2020). According to Joni (2015), at the age of 2.5-5 years old, children will usually be faster in learning a language and more sensitive to what is being heard.…”