Answer: Vocabulary Spurt
Explanation:
As children get older their rate of vocabulary growth increases. Children probably understand their first 50 words before they produce them. By the age of eighteen months, children typically attain a vocabulary of 50 words in production, and between two and three times greater in comprehension.[5][7] A switch from an early stage of slow vocabulary growth to a later stage of faster growth is referred to as the vocabulary spurt.[A vocabulary spurt often occurs over time as the number of words learned accelerates. It is believed that most children add about 10 to 20 new words a week.
