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Around their second birthday, many children begin to acquire words at breakneck speed, a phenomenon experts call the naming explosion. Most 2-year-olds can say about 100 words. By the time your toddler is 2 1/2, she'll probably know close to 300. But not all children follow this pattern, so don't panic if your child isn't talking nonstop by 2 1/2. However, if by the time your toddler is almost 3, she says fewer than 25 words and can't combine them in a simple two-word phrase, talk to your pediatrician. -- Natalie Walker Whitlock
Copyright 2004. Reprinted with permission from the June 2000 issue of Parents magazine. Updated 2009
The answers from our experts are for educational purposes only. Please always refer to your child's pediatrician and mental health expert for more in-depth advice.