However, this is just an average. Some children may know fewer or more words depending on factors like:
* Individual development: Some children are naturally faster language learners.
* Exposure to language: Children who are regularly exposed to language, both spoken and read, tend to learn more words.
* Social interaction: Children who interact with others regularly have more opportunities to practice their language skills.
Keep in mind that understanding and speaking are different. A child might understand more words than they can actually say.