How much vocabulary does the average child have?
The average child usually starts to use their first words by around 20 months of age, and by the age of 3 they usually have around 1000-1200 words.
Around the age of 4, they usually have between 1500 and 1600 words, and this vocabulary increases as the child learns more words.
It is worth noting that the size of the vocabulary can vary greatly from child to child and can be influenced by many factors, such as the way they communicate with their parents, the books they read, the television they watch or the frequency of social interactions.