Pediatrics Growth, Development, and Behavior a8db2c2f Vocabulary of a 2-year-old child is: A 20 words B 30 words C 100 words D 200 words High-Yield Explanation c. 100 words(Ref: Nelson's 20/e p 65-77, Ghai 8/e p 52-53)Vocabulary at 18 months is 10-15 words, while at 2 years, it is 50-100 words.